<ul><li>A cybersecurity researcher was able to uncover phone numbers linked to Google accounts, which is typically private information.</li><li>The vulnerability that allowed this has been fixed, but it posed a significant privacy risk as even hackers with limited resources could access personal data.</li><li>The researcher, known as brutecat, used a process of brute forcing to reveal phone numbers, which can facilitate SIM swapping attacks.</li><li>Google has acknowledged and addressed the issue, emphasizing the importance of collaboration with the security research community.</li></ul>

A Researcher Figured Out How to Reveal Any Phone Number Linked to a Google Account

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