Hack history / 2022 / Hack or exploit
Rikkei Finance
Hack or exploit on Apr 15, 2022 · Improper Access Control
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 4 SOURCES
Lost
$1.1M
dollars at the time
Returned
none listed
as the sources state it
Rank
#899
among thefts by dollars lost
What happened
Rikkei Finance lending protocol lacked permission controls in the setOracleDate function, allowing an attacker to manipulate oracle prices. With only 0.0001 BNB as collateral, the attacker borrowed all USDC, BTC, DAI, USDT, and BUSD from liquidity pools by inflating collateral value through the malicious oracle.
Details
- Date
- Apr 15, 2022
- Kind
- Hack or exploit
- Method
- Improper Access Control
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- BNB Chain
After the theft
- Victims reimbursed
- yes, amount not stated
“Rikkei Finance said users affected by the exploit will be fully compensated, and the team said the bug is being fixed and services have been fully restored.” (SlowMist Hacked)
Related incidents
Mirror 2022 · Hack or exploit · $88M
Wintermute 2022 · Hack or exploit · $17.6M
Crema Finance 2022 · Hack or exploit · $8.8M
Ankr 2022 · Hack or exploit · $5M
TempleDAO 2022 · Hack or exploit · $2.3M
Wintermute 2022 · Hack or exploit · $17.6M
Crema Finance 2022 · Hack or exploit · $8.8M
Ankr 2022 · Hack or exploit · $5M
TempleDAO 2022 · Hack or exploit · $2.3M
Cite this page
SwanBluechip, "Rikkei Finance hack, Apr 15, 2022: $1.1M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht95beb37a5e/ (data as of 2026-11-01).