Which of the following is NOT a good practice for mobile app security?

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Relying on strong, layered credential practices is essential for mobile security. Using the same password on all apps is not good because a breach on one service can expose many others; if one account is compromised, attackers often gain access to multiple apps that share that credential. The safer approach is to have unique passwords for each app, ideally managed by a password manager, so a leak in one service doesn’t unlock everything. Adding two-factor authentication whenever possible creates an extra hurdle for attackers even if they obtain a password. Installing apps only from official app stores reduces the risk of malicious software, and keeping both devices and apps updated patches known vulnerabilities. Together, these habits form a resilient defense against common mobile threats.