Yahoo Security Breach is Another Reminder of Why Password Protection is Critical to Your Business

This post is part of the series, SmallBusiness.com Guide to Business Computer and Tech Security: Advice, alerts and information about digital security threats faced by small businesses. You can browse other posts in the series below.

  1. IRS Issues Urgent Warning to Small Businesses: Beware of W-2 Phishing Scam Return | 2017

  2. Lynda.com Alerts 9.1 Million Users After 55,000 Accounts Are Breached | December 2016

  3. What Does HTTPS Mean? And Why a Small Business Website Needs the ‘S’

  4. Yahoo Security Breach is Another Reminder of Why Password Protection is Critical to Your Business

  5. Homeland Security Tips for Choosing Harder to Hack Passwords

  6. Passwords Are Stolen Everyday; How to Protect Yours From Being One of Them

  7. How to Recognize and Avoid an Attempt to Crack Your Two-Step Verification Passwords

  8. How Voice Recognition Software is Being Used to Detect Cyber Criminals

  9. How to Avoid a New Cyber Attack Attempting to Access Small Business Bank  Funds

  10. Seven Resolutions for 2016 That Will Help Protect Your Small Business Computers

  11. Top Ten Free Antivirus Utilities For Your Small Business | 2016

  12. Most Small Businesses Have No Cyber Attack Response Plan

  13. If Your Business Bank Account Gets Hacked, Your Bank May Blame You

  14. Why You Should Still Use a Password Management System, Even if You Heard One Was ‘Hacked’

  15. Advice From Google on Avoiding Scams Directed at Small Businesses

  16. More Tips for Actively Managing Your Passwords

  17. What Small Business Customers Should Know and Do About the JPMorgan Chase Cyberattack

  18. How Hackers Use ‘Social Engineering’ and How to Prevent It

  19. Ten Tips From the FCC for Improving Your Small Business Cyber Security

  20. Password Protection Advice from SmallBusiness.com

  21. Ebay Asks 145 Million Users to Change Passwords

  22. What is Two-Step Verification and Why You Should Start Using Them

  23. How (and Why) to Use a Password Management Application

  24. How to Reduce the Odds of Being Hacked While Using Public Wifi


Update, December 15, 2016 | Yahoo has updated the information related to this security breach. They are now (as of 12.15.2016) saying that as many as one billion accounts were hacked.


We’ll keep reminding you of the importance of password management as long as cybercriminals and “state-sponsored actors” keep breaking into account information like the 500 million hacked accounts revealed by Yahoo last week. This post is a part of our Guide to Small Business Computer and Tech Security so look at the list above for information about measures you can take to make your passwords more secure. 


Where to get information from Yahoo

What kind of account information was stolen at Yahoo?

  • Names
  • Email addresses
  • Telephone numbers
  • Dates of birth
  • Encrypted passwords
  • Security questions and answers (may or may not have been encrypted)

What was not stolen at Yahoo?

  • Unprotected passwords
  • Payment card data
  • Bank account information
  • Payment card data and
Beware of email about the hack that appears to be from Yahoo

Criminal hackers often use situations like this to send out email that looks like it is coming from the affected company and to seek information like that was hacked. This is an example of phishing, the attempt to obtain information like usernames, passwords, and credit card details by masquerading as a trustworthy source in an email.

What does Yahoo recommend?

Change your password
Change your security questions and answers
Review your account for suspicious activity
Be cautious of any unsolicited communications that ask for personal information
Do not click on links
Do not download attachments from suspicious emails

Also on SmallBusiness.com

Homeland Security Tips for Choosing Harder to Hack Passwords

How (and Why) to Use a Password Management Application