• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Commentarywannacry ransomware

How to Protect Yourself From Ransomware Like WannaCry

By
Shaun Murphy
Shaun Murphy
Down Arrow Button Icon
By
Shaun Murphy
Shaun Murphy
Down Arrow Button Icon
May 16, 2017, 3:32 PM ET

The WannaCry cyberattack recently infected hundreds of thousands of computers worldwide. WannaCry, also known as WannaCrypt, is ransomware, which holds a computer hostage until the user pays a certain amount of money to the hacker. This attack is an unpleasant reminder that our digital lives are constantly under threat.

That doesn’t mean there is nothing people can do, so long as they stay educated on important cybersecurity issues. The problem is that they don’t. The Pew Research Center recently quizzed over 1,000 American adults about cybersecurity issues. Only 1% of those surveyed understood every issue and answered each question correctly. Less than half of the people given the quiz were able to answer even six of the 13 questions correctly.

Topics covered in the quiz included identifying two-factor authentication to knowing the definition of ransomware. These might sound like complex terms only known to computer experts, but ignoring them is playing with fire. People can start to protect themselves by learning and establishing safe practices around these fundamental concepts of cybersecurity:

Ransomware

Ransomware is in the news now, and for good reason: It can devastate your digital life. Make sure you understand phishing attack methods and don’t open emails from unknown senders, and be especially wary if someone you don’t know emails you attached documents or links. Of course, mistakes happen, so make sure you have solid online and offline daily, weekly, and monthly backups, and periodically test these backups to make sure your data is safe.

HTTP vs. HTTPS

Use HTTPS—not HTTP—sites if you want to ensure outsiders are not reading or modifying the data you’re submitting to websites. All communications between your browser and an HTTPS site are encrypted. Modern web browsers will tell you if a site is secured through HTTPS by displaying a secure connection certificate beside the URL; this can be denoted with a lock symbol or the word “secure.” In addition, the URL itself will start with “https” instead of “http.”

If you ignore this difference, you or your company’s intellectual property could be easily exposed to competition or sold as part of an Internet service provider’s (ISP) bulk data collection. For sensitive transactions, always use HTTPS so that your ISP or any entity in the middle of the connection will have no details on what you are viewing or submitting.

Device encryption

There are many horror stories of people buying old computers or hard drives off of the Internet that contain the former owner’s confidential or personally identifiable information. The solution to this is disk encryption, which protects your files with a password.

This way, if your computer falls into the wrong hands, encryption ensures that that entity won’t be able to extract any meaningful data from it. BitLocker for Windows and FileVault for Mac offer guides to enable device encryption.

Virtual private network (VPN)

A properly configured VPN will ensure that even if you’re in a coffee shop, airport, or hotel room, you are as safe as you were back at your desk plugged into your company’s network. Be careful with free or cheap VPN services from third parties; don’t blindly trust that they won’t monitor your traffic. Once you’ve found a VPN software you trust, simply open it up and log in.

App permissions and location tracking

The more you allow apps and devices to take over responsibilities on your smartphone, tablet, or computer, the more access points you create into your life for companies and criminals alike. When you give these apps permissions for location tracking, microphone access, your address book, and other functions, they can immediately start transferring that information anywhere they choose. Consider whether each app you have really needs access to these things. If not, don’t allow it.

While it isn’t necessary to avoid these services or connected devices altogether, it is important to make smart decisions about what information you share, including what information you are granting by default, what could be granted later, and what is subject to change.

Shaun Murphy is the CEO of sndr.com. He does not have any investments of the companies mentioned in this article.

About the Author
By Shaun Murphy
See full bioRight Arrow Button Icon

Latest in Commentary

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Commentary

altman
Commentarydisruption
Sam Altman, Jensen Huang and the other AI kingpins only have themselves to blame for the scare rippling through the economy right now
By Kevin ManeyMarch 4, 2026
7 hours ago
wong
CommentaryLegal
Legal AI is splitting in two—and most people miss the difference
By David WongMarch 4, 2026
8 hours ago
cuban
CommentaryDrugs
Trump promised lower drug prices. Here’s how Congress virtually guaranteed the opposite
By Tony LoSassoMarch 4, 2026
9 hours ago
gen z
Commentarytourism
Millennials invented the experience economy and Gen Z is reinventing travel itself
By Nick FilatovMarch 4, 2026
9 hours ago
wolfgang
CommentaryLeadership
Europe doesn’t lack tech talent. Its leaders lack execution
By Wolfgang OelsMarch 3, 2026
1 day ago
zuck
Commentarycyber
Boards aren’t ready for the AI age: What happens when your CEO gets deepfaked?
By James RichardsonMarch 3, 2026
1 day ago

Most Popular

placeholder alt text
Economy
Interest on the $38.8 trillion national debt has tripled since 2020, and it already costs taxpayers more than defense and Medicaid
By Nick LichtenbergMarch 2, 2026
2 days ago
placeholder alt text
Personal Finance
Current price of silver as of Tuesday, March 3, 2026
By Joseph HostetlerMarch 3, 2026
1 day ago
placeholder alt text
Real Estate
Meet a burned out 28-year-old who pays $168 a month in China's faux Venice to retire early from her Shanghai finance gig
By Albee Zhang and The Associated PressMarch 2, 2026
2 days ago
placeholder alt text
Cybersecurity
Cities join Amazon in cutting ties with license-plate reader Flock following Ring's Super Bowl ad—that Flock 'didn't have anything to do with'
By Catherina GioinoMarch 3, 2026
22 hours ago
placeholder alt text
Middle East
Iran’s Islamic Revolutionary Guard controls a sprawling business empire that dominates the economy
By Jason MaMarch 2, 2026
2 days ago
placeholder alt text
Personal Finance
Current price of gold as of March 3, 2026
By Danny BakstMarch 3, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.