Poloniex: 3 public records. The most recent is from 2023-11-10 (Hack).
Only public records: regulators' own releases and registers, the exchange's own announcements, and the DefiLlama hacks dataset. Each line links to its source. None of this is a rating.
According to DefiLlama, about $126.0M was lost in 2023-11.
Source: DefiLlamachecked 2026-09-22
US Securities and Exchange Commission
Respondent: Poloniex LLC
2021-08-09 · Settled · Original wording: “agreed to pay more than $10 million to settle charges”
Source: US Securities and Exchange Commissionchecked 2026-09-24
According to DefiLlama, about $50.0K was lost in 2014-03.
Source: DefiLlamachecked 2026-09-22