Threat Intel

Analysis 4

24 May 2022

Analysis of Executive Impersonation Burst Attack

In May 2021 Tessian Defender flagged a series of emails sent to a global law firm. The emails were attempting to impersonate a senior partner at the firm and targeted a list of other partners. Tessian's Research & Intelligence team analyzed an executive impersonation burst attack that was detected and prevented by Tessian Defender.

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08 March 2022

Vendor Email Compromise: Analysis of an Account Takeover Attack

In March 2021 Tessian Defender flagged an email received by one of our customers from one of their trusted vendors. The vendor had suffered from an account takeover when an attacker used compromised credentials to login to the mailbox of one of their employees and send out malicious emails.

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10 February 2022

Spear Phishing Attack Impersonating C-Suite Targets Junior Employees at Law Firm

Our latest threat intelligence example reveals how attackers impersonated a leading law firm's chairman, in an attempt to socially engineer junior staff. In late January 2022 a specialist law firm was the target of a spear phishing campaign flagged by Tessian Defender where the threat actor attempted to impersonate the Chairman of the firm. Leveraging common social engineering tactics, the threat actor then targeted the firm's junior employees. This is known as CEO Fraud.

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04 February 2022

Cyber Criminals Leverage Temporary Block on PayPal Account in Phishing Attack

Tessian’s threat intelligence researchers detected a relatively sophisticated phishing attempt impersonating PayPal. We break down the elements of the attack and explain how to spot other scams.

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