Western Alliance Bank ("WAB") (United States) notified the Oregon Department of Justice and the Washington Attorney General of a data breach on 30 June 2025. It told the states about 78,338 Oregon residents; the total can be higher. The breach began on 12 October 2024, 261 days before it was reported.
Breach reported 30 June 2025
Status
Confirmed breach
People affected
78,338 Oregon residents (one state’s count; the total can be higher)
Reported
30 June 2025
Across the state notices
at least 78,877 people (Oregon and Washington: each state counts only its own residents)
Breach began
12 October 2024
Time to tell
261 days (the median in California’s notices over the last year: 154 days)
What was exposed
The register’s list does not say what was exposed; the notice it links to (under Sources) usually does.
153 days (the median in California’s notices over the last year: 154 days)
What was exposed
The register’s list does not say what was exposed; the notice it links to (under Sources) usually does.
Before the notice: the ransomware gang Cl0p named Western Alliance Bank ("WAB") on its leak site on 24 January 2025, 49 days before this was reported. Matched by the organisation’s name: the notice itself does not say who the attacker was.
Look for Western Alliance Bank ("WAB")’s own notice or letter: it should say what of yours was involved. Keep it.
The register’s list does not say what was exposed; the notice it links to (under Sources) usually does. If Western Alliance Bank ("WAB") has a password of yours, change it now to be safe.
Expect scams that use your details: calls, texts or emails pretending to be Western Alliance Bank ("WAB"), your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.
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