The Galaxy S20, launched in 2020, is among Samsung’s flagship models for this generation. As 2025 approaches, many users are wondering if their device remains protected against new digital threats and software vulnerabilities. The security of a smartphone depends not only on security updates but also on compatibility with recent applications, the reliability of network protocols, and the maintenance of the operating system.
Samsung security updates and their schedule
Samsung is committed to providing four years of major Android updates and five years of monthly security patches for flagship models like the Galaxy S20. This means that the S20 continues to receive patches in 2025 that fix critical flaws, network vulnerabilities, and privacy issues.
Samsung’s security reports indicate that the majority of S20 devices are up to date as of July 2025, ensuring protection against identified threats until that date. Beyond that, the pace of updates may slow, leaving some threat vectors unaddressed.
The risks associated with stopping updates after 2025
Once updates stop, the Galaxy S20 becomes more vulnerable to recent malware, system exploits, and network attacks. Applications continue to evolve, integrating modern security protocols that the old system may not handle properly.
Studies conducted by NordVPN indicate that 70% of devices not updated for over a year have vulnerabilities exploitable by malware. For S20 users, this highlights the importance of planning a replacement or switching to a newer device if security remains a priority.
Application compatibility and their role in security
Even if the system remains partially secure, some modern applications require recent versions of Android to function properly and leverage the latest security protocols. Banking, mobile payment, and secure messaging apps often require Android 12 or higher, which the Galaxy S20 has, but future versions might require Android 14 or 15, gradually limiting the smartphone’s effectiveness.
Network security and maintaining recent protocols
The Galaxy S20 supports 5G and current Wi-Fi protocols, but standards evolve rapidly. New encryption methods, like WPA3, are gradually becoming mandatory for certain applications and services. Without continuous updates, the smartphone may no longer be compatible with these new requirements, exposing the user to unsecured connection risks.
Physical security and protection against local hacking
Beyond software updates, a device’s security also depends on local authentication: fingerprint sensor, facial recognition, and password lock. The Galaxy S20 remains reliable in this area in 2025, but sophisticated hardware attacks become more frequent over time. Older models do not benefit from the latest hardware improvements, which can reduce robustness against advanced bypass techniques.
User practices extend security
Even after updates stop, certain practices help maintain relative security:
- Install only reliable apps from the Play Store
- Enable app verification and security alerts
- Avoid connecting the device to unsecured public networks
- Use a VPN or encryption solutions to protect data
These measures do not replace official updates but limit the risk of compromise over time.