US EditioneSIM Cloning Flaw Exposes Mobile ID Vulnerabilities
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4 Articles
Researchers Breach eSIM Chip Used in Billions of Devices
A serious flaw in widely used eSIM chips may put billions of devices at risk of cloning and unauthorized tracking. Security Exploration, a Polish research team, found a way to break into Kigen’s eUICC chip, which stores digital SIM profiles used by carriers including AT&T, Vodafone, and T-Mobile.The team extracted decrypted eSIM profiles, certificates, and keys. With this data, attackers could copy a SIM profile, take over calls and messages, an…
The article describes a technical problem: error code 521, which usually refers to access failure caused by abnormal network connection or server configuration error. This error is common in CDN services and may be caused by DNS resolution failure, server IP being blocked, or improper firewall settings. Solutions include checking network connection, restarting the router, clearing DNS cache, or contacting the service provider to troubleshoot the…
Long considered a safer solution than conventional SIM cards, eSIM is now facing a security alert of an unprecedented magnitude. A fault detected since 2019, but not corrected by Oracle, reappears in 2025 in the form of a proven attack that allows billions of smartphones to clone, monitor and control remotely. This revelation raises critical questions about the entire mobile ecosystem and the security standards that surround it. A fault operated…
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