Hack history / 2021 / Hack or exploit
Bogged Finance
Hack or exploit on May 23, 2021 · Arithmetic Error
SOURCES AGREE ON DATE AND LOSS · 3 SOURCES
Lost
$3M
dollars at the time
Returned
none listed
as the sources state it
Rank
#605
among thefts by dollars lost
What happened
A flashloan attacker exploited a bug in Bogged's deflationary token _txBurn() method, which charged only 1% instead of the intended 5% fee per transfer. This allowed the attacker to manipulate self-transfers to inflate staking reward calculations and mint 15M BOG tokens. The token crashed 98% from $8.50 to $0.15.
Details
- Date
- May 23, 2021
- Kind
- Hack or exploit
- Method
- Arithmetic Error
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- BNB Chain
Related incidents
Compound V2 2021 · Hack or exploit · $147M
Uranium Finance 2021 · Hack or exploit · $50M
ValueDefi 2021 · Hack or exploit · $11M
Pizza DeFi 2021 · Hack or exploit · $5M
Gamma 2021 · Hack or exploit · $4.5M
Uranium Finance 2021 · Hack or exploit · $50M
ValueDefi 2021 · Hack or exploit · $11M
Pizza DeFi 2021 · Hack or exploit · $5M
Gamma 2021 · Hack or exploit · $4.5M
Cite this page
SwanBluechip, "Bogged Finance hack, May 23, 2021: $3M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht440a3ae15b/ (data as of 2026-10-31).