Threat actor claims TikTok hack

A hacker claims to have leaked 428 million TikTok records, now for sale on the dark web. Learn what’s known so far and how users can protect themselves.

03-06-2025 - 3 minute read. Posted in: cybercrime.

Threat actor claims TikTok hack

Threat actor claims responsibility for massive TikTok data leak

A cybercriminal using the alias Often9 has claimed responsibility for a significant data breach involving TikTok. According to the actor, more than 428 million user records have been compromised. The stolen data has reportedly been put up for sale on a dark web forum.

If the claim proves to be true, it could represent one of the largest breaches of a social media platform to date. The potential implications for user privacy and data security are serious.

Details of the alleged breach

In a post on a well-known cybercrime forum, Often9 shared a sample of the compromised data. The information is said to include usernames, email addresses, locations, and device-related data. The threat actor is reportedly demanding a high price in exchange for access to the full dataset.

Although no passwords or payment information appear in the shared sample, the exposure of personal data still carries significant risks. Attackers may use this information to craft targeted phishing messages or combine it with data from other breaches.

Unconfirmed but concerning

At this time, TikTok has not released an official statement addressing the alleged breach. Cybersecurity researchers are analyzing the data sample, but the source of the breach remains unclear. It is not known whether the data came from TikTok directly, from a third-party service, or from previously leaked databases.

Some experts suggest the data may not be new. Cybercriminals often recycle old or aggregated data and claim it is the result of a fresh breach. However, the sheer volume of records involved makes the situation difficult to ignore.

Potential impact on users

Even if the data is outdated or partial, it still poses a threat. Personal information such as email addresses and usernames can be used in:

  • Phishing campaigns

  • Social engineering attacks

  • Targeted scams

These attacks could lead to identity theft, account compromise, or further data exposure. In addition, the incident could lead to increased regulatory scrutiny for TikTok, especially in regions where the platform’s data handling practices have already been questioned.

If you want to better understand how attackers exploit leaked data, you can read more about phishing campaigns here. To dive deeper into how manipulation tactics are used against users, check out our guide to social engineering attacks. And if you're concerned about personal data falling into the wrong hands, this article on identity theft explains what it is and how to deal with it.

What TikTok users can do

Although the breach has not been confirmed, users are advised to take proactive security measures:

  1. Enable two-factor authentication on TikTok and other platforms.

  2. Stay cautious when receiving emails or messages that appear to come from TikTok.

  3. Avoid clicking on unknown links or sharing personal information through unofficial channels.

  4. Monitor email accounts for unusual login activity or password reset attempts.

A reminder for all platforms

Whether this breach is real or exaggerated, it highlights the ongoing risks faced by large digital platforms. With millions of users and valuable personal data, social media companies must remain vigilant and transparent about their security practices.

Author Sarah Krarup

Sarah Krarup

Sarah studies innovation and entrepreneurship with a deep interest in IT and how cybersecurity impacts businesses and individuals. She has extensive experience in copywriting and is dedicated to making cybersecurity information accessible and engaging for everyone.

View all posts by Sarah Krarup

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