Reduce risks receiving viruses through email

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Most malware that enters an environment through email does so through an executable payload that's attached to an email message.

To reduce your risk from malware that may not be detected by Exchange Online Protection, you should enable file type blocking and file name extension blocking. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No.

Antivirus software protects your device from viruses that can destroy your data, slow down or crash your device, or allow spammers to send email through your account. Antivirus protection scans your files and your incoming email for viruses, and then deletes anything malicious.

You must keep your antivirus software updated to cope with the latest "bugs" circulating the internet. Most antivirus software includes a feature to download updates automatically when you are online.

In addition, make sure that the software is continually running and checking your system for viruses, especially if you are downloading files from the web or checking your email. Set your antivirus software to check for viruses every day.

You should also give your system a thorough scan at least twice a month. Spyware is software installed without your knowledge or consent that can monitor your online activities and collect personal information while you're online. Some kinds of spyware, called keyloggers, record everything you key in—including your passwords and financial information. Signs that your device may be infected with spyware include a sudden flurry of ads, being taken to websites you don't want to go to, and generally slowed performance.

Spyware protection is included in some antivirus software programs. Check your antivirus software documentation for instructions on how to activate the spyware protection features. You can buy separate antispyware software programs. Keep your antispyware software updated and run it regularly. To avoid spyware in the first place, download software only from sites you know and trust.

A firewall is a software program or piece of hardware that blocks hackers from entering and using your computer. Hackers search the internet the way some telemarketers automatically dial random phone numbers. They send out pings calls to thousands of computers and wait for responses. Firewalls prevent your computer from responding to these random calls. A firewall blocks communications to and from sources you don't permit.

This is especially important if you have a high-speed internet connection, like DSL or cable. Some operating systems have built-in firewalls that may be shipped in the "off" mode. Be sure to turn your firewall on.

To be effective, your firewall must be set up properly and updated regularly. Check your online "Help" feature for specific instructions. Making use of complex passwords and strong methods of authentication can help keep your personal information secure. Be cautious when downloading anything for free. This tip may not help you avoid getting a virus on your devices from the internet, but it will help you sidestep some of the damage and stress that comes with it if you do.

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Other names may be trademarks of their respective owners. How To. Security Center How To 6 tips to avoid getting a virus on your devices from the internet. Install antivirus software If you want to avoid getting a virus on your devices from the internet, installing and running antivirus software is important.

Be careful with email attachments Email services like Gmail and Outlook ask for your permission before downloading an attachment. Patch your operating system and applications Tech companies routinely put out software updates to make their devices or software safer to use.