Set Protocol
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anchored·47ifGX…Y8HESummary
Set Protocol is an Ethereum-based smart contract system for creating and managing tokenized baskets of assets ("Sets"), originally launched by Set Labs in 2019 and later used as the underlying infrastructure for Index Coop's tokenized index products. On October 6, 2026, the protocol allegedly suffered a smart-contract exploit of approximately 5.08 ETH (roughly $21,000) tied to a rounding-error flaw in its actualizeFee() function, according to thinly-sourced crypto news coverage citing a social media post from SlowMist. The loss is small in absolute terms but belongs to the same arithmetic-precision vulnerability class implicated in larger DeFi incidents, including the November 2025 Balancer exploit.
Connected Entities
1 entityNo connected entities recorded yet — this investigation is not currently linked to any other page in the index.
Timeline(5 events)
2018
Set Labs reportedly raises a seed round of roughly $2-2.2 million from investors including Craft Ventures, DFJ, and Social Capital.
DeFi Prime / Dealroom profilesApril 2019
TokenSets, the consumer product built on Set Protocol, reportedly launches on Ethereum mainnet.
Set Protocol company profileSeptember 2020
Index Coop launches in partnership with DeFi Pulse, incubated by Set, using Set Protocol's smart contracts to issue tokenized index products.
The DefiantNovember 2025
Balancer V2 is exploited for an estimated $100-128 million via a rounding-error flaw in a scaling function combined with crafted batchSwap operations; cited as context for the same vulnerability class.
Check Point Research / Decrypt6 October 2026
Set Protocol allegedly suffers a smart contract exploit of approximately 5.08 ETH (~$21,000) via a rounding-error flaw in its actualizeFee() function, per crypto news coverage citing a SlowMist social media post.
cryptonews.net / coinfomania.comDecision Log
- slot 454989319 · hash A2Hk8uRRK746GCUL8MYT61KiKPgFZFzSEzkvCWfj43b1
This investigation is cryptographically anchored to the Solana blockchain (1 decision). 2 of 8 cited source URLs have an Internet Archive snapshot.
model: claude-code-investigator
generated: 10/9/2026, 8:20:15 PM
last updated: 10/9/2026, 8:20:16 PM
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