Verify a decision

{"actor":"system:backfill","investigation_id":"078f37a7-dac7-42dd-a304-cbd30b11626b","kind":"publish","page_slug":"syscoin","published_at":"2026-06-27T17:17:55.227Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Syscoin","sections":[{"content":"Syscoin is a dual-layer blockchain first launched in 2014 via a crowdsale that raised 1,500 BTC. Its base layer is a Bitcoin-derived proof-of-work chain supporting UTXO transactions and merged mining with the Bitcoin network, allowing Bitcoin miners to simultaneously mine SYS without additional energy expenditure. Its second layer, the Network-Enhanced Virtual Machine (NEVM), is an Ethereum-compatible environment for smart contracts and decentralized applications. A cross-chain bridge connects the UTXO and NEVM layers, enabling token transfers between the two chains by verifying cryptographic proofs. The native SYS token is used for transaction fees and incentives. In early 2026, development was focused on a zero-knowledge EVM extension called Edgechain, which neared public testnet launch in February 2026, and an updated wallet application, Pali Wallet V4. As of mid-2026, the cross-chain bridge remains offline following the June 2026 exploit, pending completion of a security audit.","heading":"Protocol Overview","severity":"low","sources":[{"credibility":3,"name":"What is Syscoin — Bitnovo Blog","type":"other","url":"https://www.bitnovo.com/blog/en/what-is-syscoin-sys"},{"credibility":2,"name":"Syscoin bridge exploit — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-bridge-paused-exploit-project/"}]},{"content":"On June 7, 2026, an attacker exploited a proof-parsing vulnerability in Syscoin's cross-chain bridge to mint approximately 5 billion unauthorized SYS tokens on the UTXO chain without performing a corresponding burn transaction on the NEVM side. The bridge's zero-sum design assumes every UTXO-side mint is backed by an equivalent NEVM-side burn; the attacker bypassed this guarantee entirely.\n\nThe technical mechanism involved a malformed UTXO burn transaction containing two asset commitments targeting the same output. Syscoin Core and the NEVM bridge relay interpreted this ambiguous payload differently: Core treated the transaction as involving a custom token, while the relay read it as native SYS and instructed the vault contract to release approximately 5 billion tokens. No private keys were compromised; the exploit was a pure logic failure in the relay's SPV proof-parsing code. The attacker's initial address was identified as sys1qgaelv690g7wwp2xchfdh0enf5uewzq5sm9wvcw, with proceeds subsequently split approximately 4 billion SYS to one wallet and 1 billion SYS to a second.\n\nThe unauthorized tokens represented a supply inflation of roughly 568% relative to the pre-attack circulating supply of approximately 891 million SYS. At the time of the exploit, the tokens were valued at approximately $8.56 million based on a SYS closing price of roughly $0.00171. SYS experienced a price decline of approximately 40% from $0.0022 in the days following public disclosure.\n\nSyscoin's response included: immediately pausing bridge operations, publishing the affected wallet addresses and transaction hashes, contacting exchanges and ecosystem partners to blacklist or freeze tainted deposits, and deploying a fix to the identified validation path. The team made on-chain contact with the attacker, warning of exchange escalation and legal action, and offered a whitehat bounty discussion. The attacker returned all 5 billion SYS tokens to a designated recovery address via two on-chain transactions on June 10–11, 2026. The recovered tokens were subsequently destroyed via an OP_RETURN burn transaction, restoring the circulating supply to pre-exploit levels.\n\nSecurity firm Rekt News noted that no public third-party audit record exists for the bridge relay path itself, despite other Syscoin ecosystem components having been audited. This mirrors proof-handling failures at Nomad Bridge (2022), BNB Bridge (2022), and Hyperbridge (April 2026). Native SYS trading at exchanges resumed on approximately June 10, 2026; a technical breakdown of the vulnerability was released on June 15, 2026; and a public announcement of recovery and token burn was made on June 18, 2026. The bridge remained offline as of late June 2026 pending final security audit.","heading":"June 2026 Bridge Exploit","severity":"critical","sources":[{"credibility":2,"name":"Explained: The Syscoin Bridge Hack (June 2026) — Halborn","type":"research","url":"https://www.halborn.com/blog/post/explained-the-syscoin-bridge-hack-june-2026"},{"credibility":2,"name":"Syscoin Halts Bridge After Exploit Mints 5 Billion SYS Tokens — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/08/syscoin-halts-bridge-after-exploit-mints-5-billion-sys-tokens/"},{"credibility":2,"name":"Syscoin bridge remains paused as 5B token mint exploit threatens project's future — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-bridge-paused-exploit-project/"},{"credibility":2,"name":"Syscoin recovers and burns 5 billion hack tokens — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-recovers-and-burns-5-billion-hack-tokens/"},{"credibility":2,"name":"Syscoin — Rekt News","type":"research","url":"https://rekt.news/syscoin-rekt"},{"credibility":2,"name":"Syscoin recovers after hack and burns 5 billion stolen tokens — CoinSpot","type":"news_article","url":"https://coinspot.io/en/cryptocurrencies/syscoin-recovers-after-hack-and-burns-5-billion-stolen-tokens/"},{"credibility":2,"name":"Syscoin — How a validation flaw enabled 5 billion unauthorized SYS — AMBCrypto","type":"news_article","url":"https://ambcrypto.com/syscoin-how-a-validation-flaw-enabled-5-billion-unauthorized-sys/"},{"credibility":3,"name":"Syscoin bridge exploit: ~5B SYS minted in proof validation attack — PricePredictions","type":"news_article","url":"https://pricepredictions.com/news/syscoin-bridge-exploit-5-billion-sys-tokens-minted-proof-validation-flaw-br7jyfk9"},{"credibility":2,"name":"Syscoin Bridge Paused After 5 Billion Unauthorized SYS Tokens Minted — KuCoin","type":"news_article","url":"https://www.kucoin.com/news/flash/syscoin-bridge-paused-after-5-billion-unauthorized-sys-tokens-minted"}]},{"content":"In July 2024, a significant internal dispute within the Syscoin Foundation became public, with multiple board members and former employees leveling allegations of financial mismanagement, unauthorized token issuance, and potential fraud against senior leadership.\n\nFoundation board member and treasurer Willy Ko alleged that CEO Jagdeep Sidhu held sole control over the foundation's treasury wallet, which at one point contained over $100 million in assets, without multi-signature protections. Ko alleged that foundation funds were used to support SYS Labs — a for-profit company operated by Sidhu, Christopher O'Shea, and Michiel Naring — rather than for foundation purposes. Former business development manager Matthew Mappin publicly cited community concerns about the lack of financial transparency and the obscure relationship between the foundation and SYS Labs. Board member Bradley Stephenson stated that SYS Labs had delivered almost no applications despite its mandate to drive Syscoin adoption.\n\nDirectors Jagdeep Sidhu, Willy Ko, Christopher O'Shea, Michiel Naring, and Bradley Stephenson were all named in allegations related to the issuance of 100 million new SYS tokens alleged to have been unauthorized. The issuance was reportedly disguised as a community vote, with allegations that the vote was fabricated or conducted secretly, excluding most community members. It was further alleged that the Rollux project was transferred from the foundation to SYS Labs to increase the directors' personal stakes, and that the foundation's directors had not filed corporate tax returns.\n\nA criminal complaint was lodged with the Functional Public Prosecutor's Office in the Netherlands on July 26, 2024. The District Court of East Brabant scheduled a joint hearing concerning proposed dismissal of the current directors and appointment of a court-supervised director to investigate alleged fraud, embezzlement, document forgery, money laundering, and participation in a criminal organization. At a September 26, 2024 court hearing, directors Sidhu, O'Shea, and Naring allegedly attempted to withhold financial statements and accounting records for SYS Labs; the judge ordered the relevant statements and accounting to be produced. Following a Decrypt investigation, Jagdeep Sidhu indicated his intent to resign as CEO of SYS Labs. CFO Chris O'Shea disputed the transparency allegations.\n\nAll allegations above are at the investigation and civil/criminal complaint stage. No criminal convictions or final court judgments against any named individual have been confirmed in available public sources as of mid-2026.","heading":"2024 Governance Allegations and Dutch Criminal Investigation","severity":"critical","sources":[{"credibility":2,"name":"Syscoin execs accused of unauthorized creation of 100 million new SYS tokens — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-execs-100-million-tokens-fraud/"},{"credibility":2,"name":"SYS Labs CEO to Resign Amid Allegations of Mismanagement — Decrypt","type":"news_article","url":"https://decrypt.co/241565/sys-labs-ceo-to-resign-amid-allegations-of-mismanagement"},{"credibility":2,"name":"Dutch Court Grants Motion for Hearing to Dismiss Syscoin Foundation Directors after Criminal Complaint Filed — TechBullion","type":"news_article","url":"https://techbullion.com/dutch-court-grants-motion-for-hearing-to-dismiss-syscoin-foundation-directors-after-criminal-complaint-filed/"},{"credibility":2,"name":"Judge Orders Syscoin Crypto Assets Returned and Rollux SYS Labs Accounting Produced — TechBullion","type":"news_article","url":"https://techbullion.com/judge-orders-syscoin-crypto-assets-returned-and-rollux-sys-labs-accounting-produced/"},{"credibility":3,"name":"Allegations Against Syscoin Foundation and SYS Labs — dapp.expert","type":"news_article","url":"https://dapp.expert/news/en_allegations-against-syscoin-foundation-and-sys-labs"},{"credibility":2,"name":"Syscoin Foundation Takes Legal Action Over Alleged Financial Misconduct — Binance News","type":"news_article","url":"https://www.binance.com/en/square/post/2024-09-10-syscoin-foundation-takes-legal-action-over-alleged-financial-misconduct-13333839725578"}]},{"content":"On June 9, 2018, an attacker breached Syscoin's official GitHub account and replaced the legitimate Windows installer for Syscoin 3.0.4.1 with a malicious, unsigned binary containing the trojan Trojan:Win32/Feury.B!cl. The compromised installer remained available on the official GitHub releases page from approximately 10:14 PM UTC on June 9, 2018, until approximately 10:23 PM UTC on June 13, 2018 — a window of roughly four days. Windows users who downloaded and executed the setup binary during this period were potentially infected. The Syscoin team issued a security notice advising affected users to treat any credentials or private keys stored on the compromised machine as potentially exposed.","heading":"2018 GitHub Supply Chain Compromise","severity":"high","sources":[{"credibility":1,"name":"Hacker Breaches Syscoin GitHub Account and Poisons Official Client — Bleeping Computer","type":"news_article","url":"https://www.bleepingcomputer.com/news/security/hacker-breaches-syscoin-github-account-and-poisons-official-client/"},{"credibility":1,"name":"Security Notice for Windows based installers — Syscoin GitHub Wiki","type":"official","url":"https://github.com/syscoin/syscoin/wiki/Security-Notice-for-Windows-based-installers"}]},{"content":"In 2014, Syscoin raised approximately 1,500 BTC in its initial crowdsale, partnering with Moolah (operated by Ryan Kennedy, also known as Alex Green) to serve as escrow agent for the proceeds. Approximately 750 BTC — half the total raised — was alleged to have been misappropriated by Kennedy. At prevailing exchange rates, the stolen BTC was valued at approximately $300,000–$375,000 at the time. A London High Court subsequently ordered Kennedy's company Moopay (Moolah's parent) to return 750 BTC to the Syscoin development team. Ryan Kennedy and an accomplice, Chelsea Hopkins, were later arrested by UK authorities on charges of theft of more than 3,700 BTC from the exchange MintPal. Kennedy was subsequently convicted and incarcerated in the United Kingdom. Syscoin's involvement was that of a victim in this incident rather than an active participant.","heading":"2014 ICO Fund Theft (Ryan Kennedy / Moolah)","severity":"medium","sources":[{"credibility":2,"name":"British court orders Moolah to return 750 BTC to Syscoin's developers — 99Bitcoins","type":"news_article","url":"https://99bitcoins.com/british-court-orders-moolah-return-750-btc-syscoin-developers/"},{"credibility":2,"name":"Syscoin Says Alleged MintPal Scammer Ryan Kennedy Arrested in U.K. — Finance Magnates","type":"news_article","url":"https://www.financemagnates.com/cryptocurrency/news/syscoin-says-alleged-mintpal-scammer-ryan-kennedy-arrested-in-u-k/"},{"credibility":2,"name":"Alex Green is Ryan Kennedy Again and Syscoin Updates the Public — Brave New Coin","type":"news_article","url":"https://bravenewcoin.com/insights/alex-green-is-ryan-kennedy-again-and-syscoin-updates-the-public"},{"credibility":2,"name":"Syscoin's Legal Struggle with Moolah — Bitcoinist","type":"news_article","url":"https://bitcoinist.com/syscoins-legal-struggle-with-moolah/"}]},{"content":"Binance announced the delisting of SYS and nine other tokens from all margin trading products, effective January 30, 2026. The SYS token remained available for spot trading on major exchanges as of mid-2026. Following the June 2026 bridge exploit, several exchanges cooperated with the Syscoin team to freeze or monitor deposits derived from tainted addresses, demonstrating that some exchange relationships remained active. The long-term effect of the bridge exploit and the unresolved governance dispute on exchange listings was not determinable from available sources as of late June 2026.","heading":"Exchange Listings and Delistings","severity":"medium","sources":[{"credibility":2,"name":"Latest Syscoin News — CoinMarketCap","type":"other","url":"https://coinmarketcap.com/cmc-ai/syscoin/latest-updates/"},{"credibility":2,"name":"Syscoin bridge remains paused — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-bridge-paused-exploit-project/"}]},{"content":"No regulatory actions by the U.S. Securities and Exchange Commission, Commodity Futures Trading Commission, or Department of Justice against Syscoin, the Syscoin Foundation, or SYS Labs have been identified in publicly available sources as of June 2026. The criminal complaint filed in the Netherlands in July 2024 with the Functional Public Prosecutor's Office relates to alleged internal misconduct by foundation directors and is a civil/criminal proceeding within Dutch jurisdiction, not a securities or commodities regulatory action. The outcome of that Dutch proceeding was not fully resolved in available sources as of the date of this investigation.","heading":"Regulatory Status","severity":"medium","sources":[{"credibility":2,"name":"Dutch Court Grants Motion for Hearing — TechBullion","type":"news_article","url":"https://techbullion.com/dutch-court-grants-motion-for-hearing-to-dismiss-syscoin-foundation-directors-after-criminal-complaint-filed/"}]}],"sources_used":[{"credibility":2,"name":"Explained: The Syscoin Bridge Hack (June 2026) — Halborn","type":"research","url":"https://www.halborn.com/blog/post/explained-the-syscoin-bridge-hack-june-2026"},{"credibility":2,"name":"Syscoin Halts Bridge After Exploit Mints 5 Billion SYS Tokens — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/06/08/syscoin-halts-bridge-after-exploit-mints-5-billion-sys-tokens/"},{"credibility":2,"name":"Syscoin bridge remains paused as 5B token mint exploit threatens project's future — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-bridge-paused-exploit-project/"},{"credibility":2,"name":"Syscoin recovers and burns 5 billion hack tokens — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-recovers-and-burns-5-billion-hack-tokens/"},{"credibility":2,"name":"Syscoin recovers after hack and burns 5 billion stolen tokens — CoinSpot","type":"news_article","url":"https://coinspot.io/en/cryptocurrencies/syscoin-recovers-after-hack-and-burns-5-billion-stolen-tokens/"},{"credibility":2,"name":"Syscoin — Rekt News","type":"research","url":"https://rekt.news/syscoin-rekt"},{"credibility":2,"name":"Syscoin — How a validation flaw enabled 5 billion unauthorized SYS — AMBCrypto","type":"news_article","url":"https://ambcrypto.com/syscoin-how-a-validation-flaw-enabled-5-billion-unauthorized-sys/"},{"credibility":3,"name":"Syscoin bridge exploit: ~5B SYS minted in proof validation attack — PricePredictions","type":"news_article","url":"https://pricepredictions.com/news/syscoin-bridge-exploit-5-billion-sys-tokens-minted-proof-validation-flaw-br7jyfk9"},{"credibility":2,"name":"Syscoin Bridge Paused After 5 Billion Unauthorized SYS Tokens Minted — KuCoin","type":"news_article","url":"https://www.kucoin.com/news/flash/syscoin-bridge-paused-after-5-billion-unauthorized-sys-tokens-minted"},{"credibility":2,"name":"Syscoin execs accused of unauthorized creation of 100 million new SYS tokens — Cryptopolitan","type":"news_article","url":"https://www.cryptopolitan.com/syscoin-execs-100-million-tokens-fraud/"},{"credibility":2,"name":"SYS Labs CEO to Resign Amid Allegations of Mismanagement — Decrypt","type":"news_article","url":"https://decrypt.co/241565/sys-labs-ceo-to-resign-amid-allegations-of-mismanagement"},{"credibility":2,"name":"Dutch Court Grants Motion for Hearing to Dismiss Syscoin Foundation Directors after Criminal Complaint Filed — TechBullion","type":"news_article","url":"https://techbullion.com/dutch-court-grants-motion-for-hearing-to-dismiss-syscoin-foundation-directors-after-criminal-complaint-filed/"},{"credibility":2,"name":"Judge Orders Syscoin Crypto Assets Returned and Rollux SYS Labs Accounting Produced — TechBullion","type":"news_article","url":"https://techbullion.com/judge-orders-syscoin-crypto-assets-returned-and-rollux-sys-labs-accounting-produced/"},{"credibility":3,"name":"Allegations Against Syscoin Foundation and SYS Labs — dapp.expert","type":"news_article","url":"https://dapp.expert/news/en_allegations-against-syscoin-foundation-and-sys-labs"},{"credibility":2,"name":"Syscoin Foundation Takes Legal Action Over Alleged Financial Misconduct — Binance News","type":"news_article","url":"https://www.binance.com/en/square/post/2024-09-10-syscoin-foundation-takes-legal-action-over-alleged-financial-misconduct-13333839725578"},{"credibility":1,"name":"Hacker Breaches Syscoin GitHub Account and Poisons Official Client — Bleeping Computer","type":"news_article","url":"https://www.bleepingcomputer.com/news/security/hacker-breaches-syscoin-github-account-and-poisons-official-client/"},{"credibility":1,"name":"Security Notice for Windows based installers — Syscoin GitHub Wiki","type":"official","url":"https://github.com/syscoin/syscoin/wiki/Security-Notice-for-Windows-based-installers"},{"credibility":2,"name":"British court orders Moolah to return 750 BTC to Syscoin's developers — 99Bitcoins","type":"news_article","url":"https://99bitcoins.com/british-court-orders-moolah-return-750-btc-syscoin-developers/"},{"credibility":2,"name":"Syscoin Says Alleged MintPal Scammer Ryan Kennedy Arrested in U.K. — Finance Magnates","type":"news_article","url":"https://www.financemagnates.com/cryptocurrency/news/syscoin-says-alleged-mintpal-scammer-ryan-kennedy-arrested-in-u-k/"},{"credibility":2,"name":"Alex Green is Ryan Kennedy Again and Syscoin Updates the Public — Brave New Coin","type":"news_article","url":"https://bravenewcoin.com/insights/alex-green-is-ryan-kennedy-again-and-syscoin-updates-the-public"},{"credibility":2,"name":"Syscoin Faces Accusations of Token Supply Manipulation and Investor Fraud — CoinLive","type":"news_article","url":"https://www.coinlive.com/news/syscoin-faces-accusations-of-token-supply-manipulation-and-investor-fraud"},{"credibility":2,"name":"Latest Syscoin News — CoinMarketCap","type":"other","url":"https://coinmarketcap.com/cmc-ai/syscoin/latest-updates/"}],"summary":"Syscoin (SYS) is a dual-chain blockchain protocol originally launched in 2014 that combines a Bitcoin-derived UTXO chain with an Ethereum-compatible smart contract layer called NEVM. In June 2026, a critical proof-parsing flaw in its cross-chain bridge allowed an attacker to mint approximately 5 billion unauthorized SYS tokens — more than five times the circulating supply — valued at roughly $8.5–10 million; all funds were ultimately recovered and burned. The project has accumulated a pattern of serious concerns spanning its history: a 2014 ICO fund theft, a 2018 GitHub supply-chain compromise, and extensive 2024 governance allegations including a Dutch criminal investigation into alleged fraud, embezzlement, and unauthorized token issuance by its own foundation directors.","timeline":[{"date":"2014-01-01","event":"Syscoin launches via crowdsale, raising approximately 1,500 BTC; approximately 750 BTC subsequently misappropriated by escrow agent Ryan Kennedy (Moolah/Alex Green).","source":"99Bitcoins","source_url":"https://99bitcoins.com/british-court-orders-moolah-return-750-btc-syscoin-developers/"},{"date":"2014-10-28","event":"London High Court orders Moopay (Moolah parent) to return 750 BTC to Syscoin developers by 16:00 GMT.","source":"99Bitcoins","source_url":"https://99bitcoins.com/british-court-orders-moolah-return-750-btc-syscoin-developers/"},{"date":"2018-06-09","event":"Attacker breaches Syscoin's GitHub account and replaces the Windows 3.0.4.1 installer with a trojanized binary (Trojan:Win32/Feury.B!cl); malicious file available for approximately four days.","source":"Bleeping Computer","source_url":"https://www.bleepingcomputer.com/news/security/hacker-breaches-syscoin-github-account-and-poisons-official-client/"},{"date":"2024-07-26","event":"Criminal complaint filed with the Dutch Functional Public Prosecutor's Office alleging fraud, embezzlement, document forgery, money laundering, and unauthorized issuance of 100 million SYS tokens by Syscoin Foundation directors.","source":"Cryptopolitan","source_url":"https://www.cryptopolitan.com/syscoin-execs-100-million-tokens-fraud/"},{"date":"2024-07-28","event":"Cryptopolitan publishes allegations against Syscoin Foundation directors Jagdeep Sidhu, Willy Ko, Christopher O'Shea, Michiel Naring, and Bradley Stephenson regarding unauthorized 100 million SYS token creation and treasury mismanagement.","source":"Cryptopolitan","source_url":"https://www.cryptopolitan.com/syscoin-execs-100-million-tokens-fraud/"},{"date":"2024-09-10","event":"Syscoin Foundation files legal statement of defence with Dutch court contesting proposed director dismissals.","source":"Binance Square / Syscoin Foundation","source_url":"https://www.binance.com/en/square/post/2024-09-10-syscoin-foundation-takes-legal-action-over-alleged-financial-misconduct-13333839725578"},{"date":"2024-09-26","event":"Dutch court hearing held; directors Sidhu, O'Shea, and Naring alleged to have withheld financial statements; judge orders production of SYS Labs financial records and accounting.","source":"TechBullion","source_url":"https://techbullion.com/judge-orders-syscoin-crypto-assets-returned-and-rollux-sys-labs-accounting-produced/"},{"date":"2026-01-30","event":"Binance delists SYS from all margin trading products effective this date.","source":"CoinMarketCap","source_url":"https://coinmarketcap.com/cmc-ai/syscoin/latest-updates/"},{"date":"2026-06-07","event":"Attacker exploits proof-parsing flaw in Syscoin's cross-chain bridge, minting approximately 5 billion unauthorized SYS tokens (addr: sys1qgaelv690g7wwp2xchfdh0enf5uewzq5sm9wvcw); Syscoin pauses bridge and publishes preliminary postmortem same evening.","source":"Rekt News / CryptoTimes","source_url":"https://rekt.news/syscoin-rekt"},{"date":"2026-06-08","event":"Public disclosure of exploit widely reported; SYS price drops approximately 40% from $0.0022; exchanges contacted to freeze tainted deposits.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/06/08/syscoin-halts-bridge-after-exploit-mints-5-billion-sys-tokens/"},{"date":"2026-06-09","event":"Syscoin team posts recovery address on-chain and reports attacker made contact to discuss whitehat bounty.","source":"Rekt News","source_url":"https://rekt.news/syscoin-rekt"},{"date":"2026-06-10","event":"Attacker returns 5 billion SYS tokens via on-chain transactions to recovery address; exchanges authorized to reopen native SYS deposits and withdrawals.","source":"Cryptopolitan","source_url":"https://www.cryptopolitan.com/syscoin-recovers-and-burns-5-billion-hack-tokens/"},{"date":"2026-06-15","event":"Syscoin releases full technical breakdown of the bridge vulnerability.","source":"CoinSpot","source_url":"https://coinspot.io/en/cryptocurrencies/syscoin-recovers-after-hack-and-burns-5-billion-stolen-tokens/"},{"date":"2026-06-18","event":"Syscoin publicly announces completion of recovered token burn via OP_RETURN transaction, restoring pre-exploit circulating supply. Bridge remains offline pending final security audit.","source":"Cryptopolitan / CoinSpot","source_url":"https://www.cryptopolitan.com/syscoin-recovers-and-burns-5-billion-hack-tokens/"}]},"v":1}