The Marriott Breach: What to do if Your Information Has Been Compromised
Privacy, Cyber & AI Decoded Alert | 1 min read
Dec 21, 2018
Risk Management Question
Are you one of 500 million guests whose personal and financial information was compromised in the recent breach of Marriott's guest reservation system?
The Issue
Marriott's guest reservation system may have compromised data including passport numbers, credit card numbers, email addresses, phone numbers, DOB, and arrival and departure information of not only Marriott guests, but also guests of the entire Starwood chain (think: major hotel names like Westin and Sheraton, among others). If you have stayed at the Marriott or any of the Starwood chain hotels within the past four years, it is likely your information has been compromised.
Risk Management Solution
If you have been a Marriott guest during this time period, assume your business and personal email accounts have been compromised, and be on the lookout for travel-related emails with detailed information about you and your family members. Follow our anti-phishing rules for any email you receive:
- Don't click on links in any electronic communications from Marriott or any Starwood chain hotel. If you must click, first call the hotel and confirm they sent it.
- Don't respond to voicemail messages, robo calls, or text messages from any Marriott or Starwood chain hotel. Don't call the number back. Instead, research the correct phone number and call the hotel or reservation system and confirm that they called you. The legitimate caller will not request any password by phone or email.
- Don't fall for a hacker's phishing email to provide any offers that sound too good to be true, such as: "We're sorry. Here is a free 2-night stay at any Marriott location."
- Closely monitor your credit cards to assess any suspicious activity.
- Change your passwords to any affected—or even unrelated—account.
- Consider signing up for Marriott's free WebWatcher enrollment.
As always, think before you click.
Related People
Related Capabilities
Featured Insights

Employment Law Observer
Aug 17, 2026
Massachusetts’ First Paid Family Medical Leave Act Verdict Yields $4.75 Million Award

Press Release
Aug 13, 2026
Lauren Campisi Recognized as a 2026 BTI Client Service All-Star by BTI Consulting Group

Consumer Crossroads: Where Financial Services and Litigation Intersect
Aug 13, 2026
How Will Banks Be Impacted by the Proposed Regulation O Amendments?

Press Release
Aug 12, 2026
William Cook Honored With the Distinguished Service Award by the Chicago Bar Association

Webinar
Aug 12, 2026
John Ryan Presents on "Understanding what is Covered Under the TCPA Today"

In The News
Aug 12, 2026
Scott Seaman Analyzes California’s New Pleading Standards for Excess Insurance Policy Claims

Employment Law Observer
Aug 10, 2026
As Leaves Fall, Leave Requests Rise: Are You Compliant With Chicago’s Expanded Rules?

Press Release
Aug 7, 2026
Daniel McGrath Re-Elected Senior Director of the Federation of Defense & Corporate Counsel

Insights for Insurers Alert
Aug 7, 2026
California Supreme Court Clarifies Pleading Standards for Excess Policy Claims

Press Release
Aug 6, 2026
Charles Townsend Named a Best Mentor Finalist in the 2026 ALM Texas Legal Awards


