Share this article

UK Crypto Exchange EXMO Says $4M of Hacked Funds Was Through Poloniex

EXMO has confirmed an estimated $4 million of cryptocurrency was stolen through the exchange Poloniex during a hack on Dec. 21.

Updated Sep 14, 2021, 10:48 a.m. Published Dec 25, 2020, 4:59 p.m.
hacker, identity

Cryptocurrency exchange EXMO said an estimated $4 million of the cryptocurrency stolen during a hack on Dec. 21 was through the exchange Poloniex.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters

  • The U.K.-based platform has estimated that a total of 6% of its cryptocurrency has been lost to the attack with an estimated $4 million being withdrawn through Poloniex. The dollar figure of what was lost overall in the hack wasn't immediately known.
  • The exchange said assets cannot be recovered by EXMO due to criminals withdrawing the funds through Poloniex.
  • “$1 million in ZEC [zcash] stolen from EXMO have been withdrawn through the Poloniex crypto exchange,” an EXMO spokesperson told CoinDesk Friday.
  • On the day of the attack, EXMO said it had contacted cryptocurrency exchange Poloniex with a request to block an associated account and informed London police about the breach.
  • EXMO reported losses in six of the 57 cryptocurrencies it supports including ethereum classic. Each digital asset is hosted on its own server, the firm said.
  • The platform said it hopes to soon be able to fully reinstate withdrawals and deposit functions on its exchange, which has resumed most of its work.
  • “We are making some final preparations and checks at the moment before enabling depositing and withdrawing on EXMO. It will soon be ready,” said the EXMO spokesperson.
  • EXMO stressed that those users affected by the incident will be covered by the exchange.
  • Poloniex did not immediately respond to a request for comment.

Read more: Crypto Exchange EXMO Says Hackers Have Stolen 5% of Total Assets

More For You

KuCoin Hits Record Market Share as 2025 Volumes Outpace Crypto Market

16:9 Image

KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.

What to know:

  • KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
  • This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
  • Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
  • Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
  • Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.

More For You

U.S. national debt reaches new high of $38.5 trillion

Scattered pile of $1 bills (Gerd Altmann/Pixabay, modified by CoinDesk)

High debt levels and potential fiscal dominance could lead to lower interest rates, benefiting assets like bitcoin and gold.

What to know:

  • The U.S. national debt has jumped to $38.5 trillion, with a debt-to-GDP ratio over 120%.
  • Over 70% of the debt is owed to domestic lenders, and interest payments now exceed $1 trillion annually.
  • High debt levels and potential fiscal dominance could lead to lower interest rates, benefiting assets like Bitcoin and gold.