セキュリティ 19 1月 2026 - 4 2月 2026

AndroidのPDF広告詐欺：「PDFアプリを更新」偽ポップアップがスマホに迷惑アプリを大量インストール（2025年11月28日）

Fake system alerts in WPS Office prompted Android users to install multiple PDF reader apps via Google Play, filling dev

4月 5, 2026

Google began rolling out the February 2026 Android 16 update for supported Pixel devices, focusing solely on security fi

2月 4, 2026

Researchers discovered an unsecured database with nearly 149 million username and password pairs, including 48 million l

1月 27, 2026

Cybersecurity researcher Jeremiah Fowler reported finding 149 million stolen usernames and passwords, including 48 milli

1月 24, 2026

Apple said two WebKit vulnerabilities fixed in iOS 26.2 may have been used in advanced targeted attacks. Security expert

1月 20, 2026

Apple released fixes for two WebKit vulnerabilities exploited in targeted attacks on iOS devices running versions before

1月 19, 2026