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

Press Release
Nov 6, 2026
Hinshaw Recognized by the LCLD as a 2026 Compass Award Winner and Top Performer

Consumer Crossroads: Where Financial Services and Litigation Intersect
Nov 5, 2026
FDIC Proposes State Bank Preemption Parity Rule Regarding Host State Laws

Press Release
Nov 5, 2026
Hinshaw Named Among the Nation's Leading Law Firms in Best Law Firms® 2027

Webinar
Oct 29, 2026
Carol Rooney Presents on Building a Career in Appellate Practice

In The News
Oct 28, 2026
James Ferrara Comments in The New York Times on Stalled Boca Raton Luxury Condo Project

Insights for Insurers Alert
Oct 28, 2026
Insurance and Reinsurance Commutations, Run-Off, and Loss Portfolio Transfers

Healthcare Alert
Oct 27, 2026
Illinois Medical Aid-in-Dying Law Takes Effect Amid Legal Challenges

In The News
Oct 26, 2026
Scott Seaman Examines the Insurance Coverage Implications of a Recent NFL Concussion Ruling




