Poloniex: 5 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 2026-11-08
US Treasury, Office of Foreign Assets Control (OFAC)
Respondent: Poloniex, LLC
2023-05-01 · Settled · Original wording: “has agreed to remit $7,591,630 to settle its potential civil liability”
Source: US Treasury, Office of Foreign Assets Control (OFAC)checked 2026-10-17
Ontario Securities Commission / Capital Markets Tribunal
Respondent: Polo Digital Assets, Ltd. (Poloniex)
2021-05-25 · Charged
Source: Capital Markets Tribunal (Ontario)checked 2026-10-17
2022-10-27 · Administrative fine · Original wording: “Polo Digital shall pay an administrative penalty in the amount of $1,500,000”
Source: Capital Markets Tribunal (Ontario)checked 2026-10-17
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 2026-11-08