Certo Software published research showing that abusers exploit Chrome's account-sync feature to monitor victims' browsing history and saved passwords without any warning notification — a tactic that demonstrates how standard tech features can become abuse vectors without requiring dedicated stalkerware. This matters because it reveals a gap in browser security design: attackers don't need malicious software to conduct surveillance if legitimate features lack protective friction. The research also highlights a broader pattern across platforms — sexual extortion and cyberstalking increasingly rely on features designed for convenience rather than attack-specific tools.