What is the difference between manual and automatic updates? If updates must be installed over an untrusted network, use a Virtual Private Network connection to a trusted network and apply updates. Avoid updating software (automatically or manually) while connected to untrusted networks (e.g., airport, hotel, coffee shop). If possible, only apply automatic updates from trusted network locations (e.g., home, work). Users should also be suspicious of email messages that claim to have a software update file attached-these attachments may contain malware (see Using Caution with Email Attachments for more information). Do not trust a link in an email message-attackers have used email messages to direct users to websites hosting malicious files disguised as legitimate updates. Make sure that you only download software updates from trusted vendor websites. If they are not available, periodically check your vendor’s websites for updates. If automatic options are available, the Cybersecurity and Infrastructure Security Agency (CISA) recommends that you take advantage of them. Some software will automatically check for updates, and many vendors offer users the option to receive updates automatically. Attackers may target vulnerabilities for months or even years after updates are available. Install updates as soon as possible to protect your computer, phone, or other digital device against attackers who would take advantage of system vulnerabilities. When software updates become available, vendors usually put them on their websites for users to download. How do you find out what software updates you need to install? Software vendors may choose to release updates to fix performance bugs, as well as to provide enhanced security features. Patches are software and operating system (OS) updates that address security vulnerabilities within a program or product. Make sure to apply relevant patches to your computer as soon as possible so that your system is protected. When vendors become aware of vulnerabilities in their products, they often issue patches to fix those vulnerabilities.

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