> the more "useful" they become, with browser extensions etc., the greater the attack surface becomes
Also, the more popular the password manager becomes, the more valuable cracking it becomes. One exploit can yield the email, banking, workplace, confidential document, and other passwords for many millions of people. If you are an attacker, it would be worth it to have the exploit on file, proactively, for the next time you attack someone using that password manager.
Also, the more popular the password manager becomes, the more valuable cracking it becomes. One exploit can yield the email, banking, workplace, confidential document, and other passwords for many millions of people. If you are an attacker, it would be worth it to have the exploit on file, proactively, for the next time you attack someone using that password manager.