Cybersecurity · Beginner level

Beginner level · Module 3: Device Security · Lesson 1 of 3

Updates and Built-In Protection

Close security holes with updates and use the protection already on your device.

In this lesson you will

  • Explain why updates matter
  • Check update and antivirus status

Key concepts

vulnerabilitiespatchesautomatic updatesbuilt-in antivirus

The lesson

Software has flaws; updates (patches) fix them. Attackers quickly use published flaws against devices that have not updated.

Turn on automatic updates for the operating system, browser and apps. Replace devices and software that no longer receive security updates.

Modern systems include protection such as Microsoft Defender on Windows. Keep it on and up to date; install apps only from official stores.

Step by step

  1. Check the operating system update status.
  2. Turn on automatic updates.
  3. Check that built-in protection is on.
  4. List apps that no longer receive updates.

Practice activity

Update a laptop and a phone fully and confirm protection is on.

Expected result: Fully updated devices with automatic updates and protection enabled.

Check your understanding

  1. What does a security patch do?

    Show answer

    It fixes a known flaw that attackers could use.

  2. Where should apps be installed from?

    Show answer

    Official app stores or the developer's official site.

Taught live by an instructor — online or in person. Free course lessons are for self-study and do not lead to a certificate — see registration options.