Hack history / 2026 / Hack or exploit
Fearless Wallet
Hack or exploit on Oct 21, 2026 · Private Key Leakage
ONE SOURCE · 1 SOURCE
Lost
$20K
dollars at the time
Returned
none listed
as the sources state it
Rank
#2,128
among thefts by dollars lost
What happened
Polkadot issued a security alert stating that the Fearless Wallet browser extension (a third-party wallet) had been compromised since February 2025. Malicious code sent users’ private keys to an attacker-controlled server when the wallet was unlocked. Eight users have reported unauthorized transactions totaling 17,286 DOT. Affected users are urged to create new keypairs in a different wallet and move funds immediately.
Details
- Date
- Oct 21, 2026
- Kind
- Hack or exploit
- Method
- Private Key Leakage
- How in
- Keys, accounts and infrastructure
- Target
- Wallet
- Chains
- not stated
Reported by
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Blink Wallet 2026 · Hack or exploit · undisclosed
DCENT Wallet 2026 · Hack or exploit · $6.6M
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Cite this page
SwanBluechip, "Fearless Wallet hack, Oct 21, 2026: $20K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htb837555bf0/ (data as of 2026-10-31).