LAS VEGAS — Computer hackers stole the personal information of tens of thousands of Las Vegas Sands customers during a data breach earlier this month, the casino company said Friday.

The company said in a regulatory filing that information about some patrons at its Bethlehem, Pa., hotel-casino was compromised during the Feb. 10 attack. Spokesman Ron Reese said the number of customers affected was in the mid-five figure range, as far as the company could tell.

Examples of the kinds of legally protected data that were stolen include Social Security and driver’s license numbers. An informational website Sands has set up warns that credit card information and bank account information may also have been stolen. The company is providing credit monitoring and identity theft protection to customers affected by the hacking.

Reese didn’t say whether credit card information was taken.

A mailing database similar to something a direct marketing firm would use was also stolen.

Sands said it was still working to determine whether customer information from other properties was breached, a process made more time-consuming by the destruction the hackers wrought.