Nansen third-party vendor suffers security breach, user data affected

Prominent crypto and blockchain analytics company Nansen posted on social media platform X (formerly Twitter) that one of its third-party vendors suffered a security breach affecting 6.8% of its users.

According to Nansen, the breach gave hackers access to admin rights for an account used to “provision customer access” to its platform.

Important update from us at Nansen. Please take a moment to read this.

— Nansen (@nansen_ai) September 22, 2023

Without directly naming the company affected, it said this vendor is “an established company that is used by many Fortune 500 companies” along with other companies in the industry for the purpose of managing data. 

The users who were affected by the breach reportedly had their email addresses exposed, along with some password hashes and a small group had their blockchain addresses compromised.

Nansen said it has identified and informed those affected of the matter and asked all to change their passwords. It also clarified that wallet funds were unaffected by the event. 

Related: PayPal’s PYUSD struggles with early adoption — Nansen

Nansen is a prominent resource in the crypto space and provides on-chain analytics about many of the industry’s major players. 

In a recent interview with Cointelegraph, the CEO of Nansen, Alex Svanevik commented that he believes in the future a protocol will exist that creates a balance between blockchain transparency and user privacy and is compliant with regulators.

Back in May, the company was among the many that felt the effects of the ongoing bear market and laid off around 30% of its workforce. 

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