Hack history / 2019 / Hack or exploit
Coinbase
Hack or exploit on May 22, 2019 · SIM Card Attack
ONE SOURCE · 1 SOURCE
Lost
$100K
dollars at the time
Returned
none listed
as the sources state it
Rank
#1,731
among thefts by dollars lost
What happened
Hackers steal $100,000+ worth of BTC from engineering manager at Crypto Custodian BitGo. Sean Coonce, engineering manager at cryptocurrency custodian BitGo. According to the post, Coonce had over $100,000 siphoned out of his account on cryptocurrency exchange Coinbase in under 24 hours. Coone details SIM swapping, a practice that sees the attacker maliciously requesting a telecommunications carrier to redirect the traffic of a mobile phone number to a device over which they have control.
Details
- Date
- May 22, 2019
- Kind
- Hack or exploit
- Method
- SIM Card Attack
- How in
- Other
- Target
- Centralized exchange
- Chains
- not stated
Reported by
Related incidents
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New York scammer "daytwo" steals $4 million from Coinbase users, blows most of it gambling 2025 · Scam · $4M
Coinbase customer loses $35 million in bitcoin theft 2025 · Hack or exploit · $46M
Coinbase accused by crypto sleuth zachxbt of allowing more than $300 million per year in social engineering attacks on its customers 2025 · Hack or exploit · $300M
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Cite this page
SwanBluechip, "Coinbase hack, May 22, 2019: $100K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht7c810c06c9/ (data as of 2026-10-31).