Patches are updates that improve functionality and fix security vulnerabilities in software and operating systems (OS). Software vendors release these updates to resolve performance issues and strengthen security, making them essential for device protection.
Learn more about software patches on Microsoft’s Security Blog.
How to Identify Necessary Software Updates
Software vendors often make updates available on their websites. Installing these updates right away protects your devices, like computers and smartphones, from attackers who exploit known vulnerabilities. In fact, some attackers continue targeting these flaws long after patches are released.
Many software programs check for updates automatically, and some vendors offer an option to enable automatic updates. The Cybersecurity and Infrastructure Security Agency (CISA) advises users to enable automatic updates when possible. If automatic updates are unavailable, make it a habit to check the vendor’s website regularly.
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View CISA’s official guidance on enabling automatic updates.
Tip: Always download updates from trusted sources. Avoid clicking on links in emails or attachments claiming to provide updates, as these may lead to malicious sites or contain harmful software.
For added security, apply updates on trusted networks, like those at home or work. When using an untrusted network, like public Wi-Fi, first secure the connection with a Virtual Private Network (VPN).
Learn more about VPNs and secure internet usage on the Electronic Frontier Foundation (EFF) site.
Manual vs. Automatic Updates
Manual Updates: Users or system administrators visit the vendor’s website to download and install updates. This method provides more control but requires regular attention.
Automatic Updates: After enabling automatic updates, the system downloads and installs them without further action. This approach ensures timely updates and keeps software secure with minimal effort.
What Is End-of-Life (EOL) Software?
End-of-life (EOL) software is outdated software that no longer receives support or updates from the vendor. Using EOL software creates security risks, as it remains vulnerable to known flaws and may cause performance and compatibility issues with other programs.
Read more about EOL software risks on the National Institute of Standards and Technology (NIST) site.
Best Practice: CISA strongly recommends retiring any EOL software to reduce exposure to potential security threats.
Best Practices for Software Updates
- Enable Automatic Updates: Activate automatic updates to ensure patches are applied as soon as they’re available.
- Avoid EOL Software: Stop using software that is no longer supported by its vendor.
- Visit Vendor Sites Directly: Always download updates from the official vendor’s website, not from email links or online ads.
- Use Trusted Networks: Perform updates on trusted networks. When using public Wi-Fi, secure the connection with a VPN.
New vulnerabilities emerge frequently, and attackers often target systems left unpatched. Your best defense against these risks is straightforward: keep your software updated. Regular software updates are crucial for protecting your computer, phone, and other digital devices from cyber threats.
Find additional cybersecurity tips on CISA’s website.
