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Monthly Cyber Threats Report - June 2025

Issue 6: June 2025

Monthly Cyber Threats Report - June 2025

Editor's note

Mark Tibbs

Our monthly report prepares cybersecurity practitioners to make better tactical, operational and strategic decisions. We have distilled analysis of key events from the previous month which have learning points that can be actioned to improve security.

News
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Lessons from Coinbase insider threat incident

On 15 May, Crypto exchange Coinbase acknowledged in a Form 8-K filing with the US financial regulator, the Securities and Exchange Commission (SEC) that threat actors had bribed multiple overseas contractors or employees to give them information which was then being used for the purposes of extortion.

News
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Leaked ransomware source code likely to lead to more attacks

On 20 May 2025, the cyber threat landscape was unsettled once again when a developer linked to the VanHelsing ransomware-as-a-service (RaaS) group leaked critical components on a well-known hacking forum. Going by the name "th30c0der", this former associate of the group tried to sell the entire source code for the VanHelsing ransomware on the Russian Anonymous Marketplace (RAMP) forum for $10,000.

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