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Cybersecurity Checklist: Follow These Simple Steps to Break Bad Habits

Our security experts tell you how to change the way you interact online, lock down your devices, and clean up your digital spaces.

 & Kim Key Senior Writer, Security

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology.

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When my dad built me my first computer and encouraged me to explore online, he didn't post a list of cybersecurity best practice guidelines to follow on my wall. Instead, he gave me several free hours of AOL access via a shiny CD and a noisy modem and told me to have fun. The internet has changed since then, and staying safe online now requires families to adopt a different, more vigilant routine to reduce the risk of falling victim to phishing or another type of scam. Luckily that routine doesn't need to be cumbersome, and even a few small changes to your online behavior—like keeping your browser up to date and using a password manager—can go a long way. This checklist can help you get started.


Check Off Your Security Tasks

While putting together this checklist, I sourced some ideas from Google's Workspace Learning Center and a different security checklist from Purdue University's Information Technology division. I also asked some of my PCMag colleagues to tell me about any periodic cybersecurity-related tasks that don't take much time but bring them peace of mind.

Lead software analyst Michael Muchmore said that he keeps up with operating system updates on his devices. Lead security analyst Neil J. Rubenking told me he gets monthly credit score updates via Credit Karma and Experian.

I recommend backing up and deleting old files (especially those with sensitive personal information) from old online accounts yearly and dumping your desktop and mobile browser caches whenever you think about it. I also periodically check the tracking permissions granted to mobile apps since updates can add new default settings that require an opt out.


IRL Tech Safety Suggestions

Work on your security hygiene offline, too. When you get a new computer, remember to back up your files and then wipe the old computer's hard drive. For more, check out our thorough guide to getting your computer ready to recycle or sell.

The same advice applies to mobile devices like phones and tablets, too. Here's a guide to completely erasing your Android or iPhone.

It's a good idea to periodically back up any sensitive files you're storing on your hard drive or phone to an external hard drive. It may sound like overkill, but think about it: You probably keep important paper documents in a fireproof safe in your home. It's a good idea to keep the equivalent virtual documents on an air-gapped storage device. That way, if your system is infected by malware or otherwise compromised by a hacker, they can't access your valuable data.


How to Check Your Privacy Settings on Your Phone

Another critical part of cybersecurity defense is securing the mobile devices used by each household member. We have written about how to maintain privacy by stopping apps from collecting sensitive personal data, and we have tips on locking down a phone quickly in emergencies. Check out the videos below to learn how to customize your phone's privacy settings:

How to Lock Down Privacy on Android

@kim.key This is your reminder to check your Android privacy settings! More security and privacy news and tips at PCMag.com. #cybersecurity #pcmag #privacy #android #samsunggalaxy ♬ Paranoid Android - Regency Philharmonic Orchestra

How to Lock Down Privacy on iOS

@kim.key What apps are watching (or listening, or recording) you? Check your iOS privacy settings to find out! More tips at PCMag.com #cybersecurity #pcmag #privacy #ios #iphone ♬ Somebody's Watching Me - Starlite Karaoke

Cybersecurity Requires Vigilance

Bookmark this page so you can review this list once a month. It'll help you develop positive online safety habits. You may not need to perform every action each time, but it can be helpful to remember other security tasks you might need to do in the future.

One more thing: If you don't already have antivirus protection or a password manager, we've reviewed just about all of the major ones, so check out these stories for our top picks.

About Our Expert

Kim Key

Kim Key

Senior Writer, Security

My Experience

I review privacy tools like hardware security keys, password managers, private messaging apps, and ad-blocking software. I also report on online scams and offer advice to families and individuals about staying safe on the internet. Before joining PCMag, I wrote about tech and video games for CNN, Fanbyte, Mashable, The New York Times, and TechRadar. I also worked at CNN International, where I did field producing and reporting on sports that are popular with worldwide audiences.

In addition to the categories below, I exclusively cover ad blockers, authenticator apps, hardware security keys, and private messaging apps.

The Technology I Use

I like testing new software for work, but I'm less "plugged in" to the internet than I used to be. I tend to read app privacy policies to see what kind of data companies collect, and as a result of those findings, I don't use many mobile apps. In a similar vein, I was an early adopter of many social media platforms, but now I’m just an infrequent Reddit lurker.

I'm a gear junkie. I split my work time between a 2021 Apple MacBook Pro and a Lenovo ThinkPad. I shoot most of my videos for PCMag using a Canon M50, a Sony A7iii, and a Sony a6000. I edit videos using Final Cut Pro and Adobe Premiere Pro.

I write all of my words for PCMag either in the MS Notepad app on my ThinkPad or the Notes app on my iPhone 12 mini. If I'm traveling and working, I use my iPad to write short articles or take notes.

My dad built me my first computer sometime in the late '90s, and I used it for reading Encyclopedia Britannica and writing Sailor Moon fan fiction. My first phone was the ubiquitous Nokia candy bar.

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