Business News Roundup, Aug. 16

Hyatt, Sheraton, Marriott and Westin hotels in 10 states and the District of Columbia may have been targeted by hackers for months.

According to hotel operator HEI Hotels & Resorts, malware put into place in at least 20 locations may have collected names, card account numbers, card expiration dates and verification codes.

At some properties, HEI said, data collection may have begun as early as March 2015 at hotel locations where people bought food or drinks.

The company said it did revise some language on the site to make it clearer to drivers that Autopilot is a driver-assist system and not a self-driving system.

Tesla has been under pressure to stop using the term Autopilot in the U.S. following the death of an Ohio tech company owner in a Florida crash involving the system.

Tesla says the driver’s hands weren’t detected on the steering wheel during the crash.

The company says drivers using Autopilot must keep their hands on the wheel and be ready to take over.

Revisions to the language on websites have been under way for weeks to address “discrepancies across languages,” the Palo Alto company said.

The timing had nothing to do with current events or articles, and Tesla has no plans to remove any references to Autopilot from any website, spokeswoman Khobi Brooklyn said.

San Francisco file-storage company Dropbox has met with advisers to discuss the possibility of an initial public offering as soon as 2017, according to people familiar with the matter.

Management wanted to talk about the feasibility and get a sense of the price investors might pay, the people said.

Berkshire said it held 15.2 million Apple shares at the end of June, up from the 9.8 million share stake it disclosed in the spring, which raised eyebrows because Buffett has avoided technology companies.