Cybersecurity Weekly: Walgreen's leaked PII, ultrasonic Siri hack, Clearview data breach

Walgreen's accidentally leaked sensitive user data. Hackers can use ultrasonic waves to secretly control voice assistants. The AI firm Clearview lost billions of photos of users in a recent hack. All this, and more, in this week’s edition of Cybersecurity Weekly.

1. Walgreen's accidentally leaked sensitive user data

Walgreen's disclosed that some of its mobile apps' users have been able to inadvertently access other users' sensitive information because of a bug. The data leak incident was caused by the unauthorized disclosure of secure messages within the app. The bug persisted for only one week before being fixed by a January 15 security patch.
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2. Hackers can use ultrasonic waves to secretly control voice assistant devices

Researchers discovered a new method to target voice-controlled devices by transmitting ultrasonic waves through solid materials. It's possible for an attacker to interact with the devices using the voice assistants, hijack SMS two-factor authentication codes and place fraudulent calls, all without the victim’s knowledge.
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3. Clearview AI firm hacked, lost billions of photos of users

Hackers recently hijacked Clearview’s entire client list, which includes police forces, law enforcement authorities and financial institutions. So far, the company collected nearly three billion photographs of users from numerous social media platforms like Facebook, Instagram, Twitter and YouTube.
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