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Web3Auth Key Breach Drains Keplr Wallets: Detection & IOCs

Web3Auth's login service leaked private keys for some Keplr users, with thefts from 2026-11-06 and 9 detection rules, 17 IOCs and a free Splunk SPL rule.

Read the full threat intel for Web3Auth Key Breach Drains Keplr Wallets: Detection & IOCs →

Chapters

  1. 0:00The hookKeplr sign-in breach: about $1M stolen, GoPlus says.
  2. 0:05The storySweeps began; Keplr paused sign-ins.
  3. 0:12Attack pathA sign-in flaw exposed private keys.
  4. 0:27AttributionNo threat actor is attributed.
  5. 0:32Indicators of compromise2 indicators to hunt: 1 domain and 1 hash.
  6. 0:38MITRE ATT&CK techniques5 ATT&CK techniques, from initial access to impact.
  7. 0:43Remediation5 steps now: Do not send new funds to Keplr accounts created.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Keplr sign-in breach: about $1M stolen, GoPlus says.

0:05Sweeps began; Keplr paused sign-ins.

0:08About two hours later, the largest wave.

0:12A sign-in flaw exposed private keys.

0:14First sweep: ten wallets each sent under two cents.

0:18The largest wave bundled up to six wallets.

0:21Funds sit in recovery wallets; control is unverified.

0:27No threat actor is attributed. Confidence: low.

0:322 indicators to hunt: 1 domain and 1 hash.

0:385 ATT&CK techniques, from initial access to impact.

0:435 steps now: Do not send new funds to Keplr accounts created.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.