Hedera
Last changed 2026-10-27 · Score recalculated — Rescored under Scoring v2, the published formula (avoid.net/scoring): 55 → 57. Problems weighed by who is responsible: concerns that are not fraud −12.8, incidents the subject suffered −3.2, problems around the subject, caused by others −1.6; legitimacy credit long-running +10. Version history →
Why this score
| Every page starts at | 65 |
| Concerns that are not fraud | -12.8 |
| Incidents it suffered (e.g. hacks) | -3.2 |
| Problems around it, caused by others | -1.6 |
| Long-running | +10 |
| Sum | 57 |
Score: 57/100 (kept between 0 and 100)
How scoring works →Summary
Hedera is a public distributed ledger technology platform using a patented hashgraph consensus mechanism, launched to mainnet in September 2019. In March 2023, the network suffered a protocol-level exploit in its Smart Contract Service that drained approximately $600,000 in liquidity pool tokens from three decentralized exchanges, requiring a full mainnet proxy shutdown for 41 hours. The platform operates under a council governance model comprising up to 39 global enterprises, which provides institutional stability but draws criticism for centralization relative to permissionless blockchains.
Connected Entities
5 entities · 60 linked investigations- Ethereum→mentioned with→Bitcoin(60%)
- Hedera→mentioned with→Uniswap(60%)
- Hedera→mentioned with→Bitcoin(60%)
- Hedera→mentioned with→Chainlink(70%)
- Hedera→mentioned with→Ethereum(60%)
- Uniswap→mentioned with→Bitcoin(60%)
- Uniswap→mentioned with→Ethereum(80%)
- Chainlink→mentioned with→Ethereum(65%)
Timeline(12 events)
2016
Swirlds, Inc. granted three U.S. patents protecting the hashgraph consensus algorithm invented by Dr. Leemon Baird.
16 September 2019
Hedera mainnet launched for open public access with HBAR as the native token.
15 September 2021
HBAR reached its all-time high price of approximately $0.57 USD.
19 January 2022
Hedera Governing Council voted to purchase the hashgraph intellectual property from Swirlds, Inc. and committed to releasing it under the Apache 2.0 open-source license.
5 August 2022
Hedera codebase transitioned to open source under Apache 2.0, completing the IP acquisition and open-sourcing commitment.
November 2022
Prolific scammer (account '2015717') allegedly began mass airdrop phishing campaigns targeting Hedera wallet users, sending fraudulent memos to tens of thousands of accounts.
9 March 2023
Attacker exploited a delegatecall precompile bug in Hedera's Smart Contract Service, stealing approximately $600,000 in tokens (DAI, USDT, USDC, WHBAR) from liquidity pools at Pangolin, SaucerSwap, and HeliSwap. Mainnet proxy access disabled at 20:18 UTC.
11 March 2023
Hedera mainnet upgraded with patch (version 0.34.5) blocking delegateCall to HTS precompile contracts; full service restored at 02:04 UTC, 41 hours after initial attack discovery.
15 November 2024
Hedera Governing Council approved governance reforms, reducing board size from seven to five members with two unaffiliated seats.
2025
HBAR reached approximately $0.40, a multi-year high driven by post-election crypto rally, before declining over 70% by end of Q1 2025.
October 2025
Canary Capital HBAR ETF launched, accumulating approximately $93 million in net inflows.
3 June 2025
FBI Internet Crime Complaint Center (IC3) issued formal public service announcement warning of cybercriminals defrauding Hedera Hashgraph non-custodial wallet users through NFT airdrop phishing schemes.
Decision Log
- slot 461961827 · hash RksDCPLa2A5486otBAkyBbBBCW2qL3oAh2ozMYnVMqs
- slot 457822106 · hash 9xUQaaMb8CkvXCsPd2Jy4uYDRk8GsoPdPgsJVBZNU648
- slot 425399903 · hash GBEJZi1nBiN7Hrj4r5Pudrvd3SZZ9Bh1GHXPQ3gKQPWv
- slot 425399900 · hash ANyd8dAUds6ZHLBWbeQ2bXutbPbCUDcQvjDp5PG8d4cW
- slot 422972325 · hash 5kRX1frdY1d43Koo8jK2yDuKJdJMugzbyFMPwZ5TPsVQ
This investigation is cryptographically anchored to the Solana blockchain (5 decisions). 20 of 24 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 5/4/2026, 2:54:26 AM
last updated: 10/27/2026, 6:02:36 AM
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