• 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
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
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
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Commentary

joaquin
Commentary250 Years of Innovation
Johnson & Johnson CEO: America’s innovation advantage starts with health 
By Joaquin DuatoMay 9, 2026
14 hours ago
reed
CommentaryRetirement
Tim Cook and Reed Hastings just showed every CEO how to leave gracefully
By Paul HardartMay 9, 2026
16 hours ago
golf
Commentarybooks
How playing golf alone can make you better at your job
By Gary BelskyMay 8, 2026
2 days ago
naomi
Commentarymental health
Naomi Osaka: the things I didn’t do to succeed
By Naomi OsakaMay 8, 2026
2 days ago
amanda
Commentarybatteries
Why energy storage is moving beyond the capex debate
By Amanda SimonianMay 7, 2026
2 days ago
trump
CommentaryMedicare
Auto-enrollment in Medicare Advantage isn’t a nudge. It’s a trap
By Brian KeyserMay 7, 2026
3 days ago

Most Popular

'Employers are increasingly turning to degree and GPA' in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
Future of Work
'Employers are increasingly turning to degree and GPA' in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
By Jake AngeloMay 9, 2026
12 hours ago
Ted Cruz says the quiet part out loud: Trump accounts are Social Security personal accounts as GOP senator reveals 'dirty little secret'
Politics
Ted Cruz says the quiet part out loud: Trump accounts are Social Security personal accounts as GOP senator reveals 'dirty little secret'
By Jason MaMay 9, 2026
8 hours ago
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
Magazine
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
By Sharon GoldmanMay 6, 2026
4 days ago
California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
North America
California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
By Sasha RogelbergMay 7, 2026
2 days ago
You're probably safe from the Hantavirus outbreak, but here's what you absolutely must not do, experts say
Politics
You're probably safe from the Hantavirus outbreak, but here's what you absolutely must not do, experts say
By Catherina GioinoMay 8, 2026
1 day ago
The CEO of Maersk, which ships 14% of everything you buy, said the Iran war is adding $500 million in monthly costs it's trying not to pass down
Energy
The CEO of Maersk, which ships 14% of everything you buy, said the Iran war is adding $500 million in monthly costs it's trying not to pass down
By Sasha RogelbergMay 8, 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.