Hack history / 2022 / Hack or exploit
Ankr
Hack or exploit on Dec 2, 2022 · Improper Access Control
SOURCES AGREE ON DATE AND LOSS · 3 SOURCES
Lost
$5M
dollars at the time
Returned
$5M
100% of the loss, as a source states it
Rank
#452
among thefts by dollars lost
What happened
On December 2, 2022, a former Ankr employee exploited an access control flaw in the aBNBc staking token contract, minting 10 trillion tokens and converting ~$5M to USDC. Binance froze $3M; Ankr reimbursed affected users from company reserves.
Details
- Date
- Dec 2, 2022
- Kind
- Hack or exploit
- Method
- Improper Access Control
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- BNB Chain
After the theft
- Frozen
- $3M
“Binance froze $3M;” (DefiLlama) - Victims reimbursed
- yes, amount not stated
“Ankr reimbursed affected users from company reserves.” (DefiLlama)
Related incidents
Ankr 2026 · Hack or exploit · $410K
Mirror 2022 · Hack or exploit · $88M
Wintermute 2022 · Hack or exploit · $17.6M
Crema Finance 2022 · Hack or exploit · $8.8M
TempleDAO 2022 · Hack or exploit · $2.3M
Mirror 2022 · Hack or exploit · $88M
Wintermute 2022 · Hack or exploit · $17.6M
Crema Finance 2022 · Hack or exploit · $8.8M
TempleDAO 2022 · Hack or exploit · $2.3M
Cite this page
SwanBluechip, "Ankr hack, Dec 2, 2022: $5M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht8207077a1b/ (data as of 2026-10-31).