Intelimost Data Breach

What happened

In March 2019, a spam operation known as "Intelimost" sent millions of emails appearing to come from people the recipients knew. Security researcher Bob Diachenko found over 3 million unique email addresses in an exposed Elasticsearch database, alongside plain text passwords used to access the victim's mailbox and customise the spam.

Exposed data

Recommended actions

• Change your Intelimost password immediately, and update it anywhere you reused the same password.
• Enable two-factor authentication on the affected account and on your critical services (email, banking).
• Watch for targeted phishing emails referencing Intelimost — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.