TikTok Fixes Zero-Day Bug Used to Hijack High-Profile Accounts

TikTok fixes a zero-day bug exploited to hijack high-profile accounts. Learn about the vulnerability, its impact, and how to protect your account.
TL;DR - A zero-day vulnerability in TikTok's direct messages allowed hackers to hijack high-profile accounts. TikTok has fixed the issue and provided measures to prevent future attacks.

TikTok recently addressed a critical zero-day vulnerability that led to the hijacking of several high-profile accounts. This incident highlights the persistent threat of cyberattacks on popular social media platforms.

Understanding the Zero-Day Vulnerability

Zero-day vulnerabilities are security flaws that are unknown to the software vendor and have no available patches. In TikTok's case, attackers exploited a flaw in the direct messages feature. This particular vulnerability allowed hackers to hijack accounts merely by sending a malicious message, which did not require the target to download any payload or click on embedded links.

Impact on High-Profile Accounts

Over the past week, attackers targeted high-profile TikTok accounts, including those belonging to Sony and CNN. After the breach, affected accounts were taken down to prevent further misuse. The attack method involved sending malicious direct messages that, once opened, allowed attackers to gain control over the accounts.

TikTok's security team quickly responded to the issue, taking measures to stop the attack and restore access to compromised accounts. Although the company did not reveal the exact number of impacted users, it confirmed that the number of affected accounts was relatively small.

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History of TikTok Security Issues

This incident is not an isolated case. TikTok has faced multiple security challenges in recent years. For instance, in August 2022, Microsoft discovered an Android app flaw that allowed hackers to take over accounts with a single tap. Other vulnerabilities in the past have enabled attackers to bypass privacy protections, steal private information, and hijack accounts.

Mitigation and Prevention Measures

To address the recent zero-day vulnerability, TikTok implemented several security measures. These included taking down compromised accounts and working directly with affected users to restore access. The company has also been investigating the underlying flaw to prevent similar attacks in the future.

Users are advised to:

  • Enable multi-factor authentication (MFA) to add an extra layer of security.
  • Avoid opening suspicious direct messages.
  • Regularly update their app to benefit from the latest security patches.

The recent TikTok zero-day vulnerability incident underscores the importance of robust cybersecurity measures, especially for high-profile accounts. While TikTok has resolved this issue, users must remain vigilant and adopt best practices to secure their accounts.


1. What is a zero-day vulnerability?
A zero-day vulnerability is a security flaw that is unknown to the software vendor and has no available patches.
2. How were TikTok accounts compromised?
Accounts were compromised through a vulnerability in TikTok's direct messages feature, where malicious messages allowed attackers to gain control without any user interaction beyond opening the message.
3. What measures has TikTok taken to address this issue?
TikTok has taken down compromised accounts, implemented fixes for the vulnerability, and is working with affected users to restore access.
4. How can I protect my TikTok account from such vulnerabilities?
Enable multi-factor authentication (MFA), avoid opening suspicious messages, and keep your app updated.
5. Has TikTok experienced similar security issues before?
Yes, TikTok has faced multiple security issues, including vulnerabilities that allowed account takeovers and data theft.

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