WhatsApp CEO Jan Koum breaking ties with his company over privacy flap

WhatsApp CEO Jan Koum is losing ties with his company’s parent, Facebook, amid a privacy scandal that has dogged the social network for weeks.

Mr. Koum confirmed his departure from WhatsApp on Monday on his Facebook page. Mr. Koum also plans to resign from Facebook’s board of directors. Facebook wouldn’t comment on that report.

Facebook has been attempting to reject questions about whether it can be trusted with the reams of personal information it gathers to sell ads and whether its social network does more harm than good.

Mr. Koum didn’t elaborate on his reasons for leaving, other to say it was time to “move on” so he could spend more time “collecting rare air-cooled Porsches, working on my cars and playing ultimate frisbee.”

WhatsApp also runs no ads. Facebook’s enormous profits, meanwhile, are powered almost entirely by advertising targeted to its users’ interests.

Mr. Koum’s defection could put CEO Mark Zuckerberg in an uncomfortable position on Tuesday when he takes the stage at a company conference. In attendance will be more than 5,000 app software developers, some of whom may be WhatsApp users.

Mr. Zuckerberg is already expected to reiterate some of the apologies he’s been offering in the wake of revelations that Facebook allowed Cambridge Analytica, a data mining firm tied to U.S. President Donald Trump’s 2016 campaign, to obtain personal information from as many as 87 million of its users.

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Facebook bought WhatsApp for $19 billion in 2014, though without ever devising a clear strategy for how that service would make money. Both Mr. Koum, and WhatApp’s other co-founder, Brian Acton, had expressed an aversion to allowing ads into their service, causing analysts to wonder if the acquisition would ever pay off for Facebook.

Mr. Acton left WhatsApp late last year and joined in the growing backlash against Facebook, endorsing a campaign that encouraged users to delete their profiles from the social network.

But few of Facebook’s 2.2 billion users have departed so far, based on the audience and revenue growth the company reported last week.