Earlier this month, a security vulnerability in Adobe Flash compelled Google and Mozilla to temporarily block the plug-in from their browsers. Now, Facebook says the problems with Flash could hurt its bottom line.

In a filing with U.S. regulators on Friday, Facebook said security issues with Flash could harm the revenue it collects from its Payments service. That’s because social games on Facebook rely on Flash, and they’re also the source for substantially all the revenue it gets from Payments.

The company listed the concern for the first time among the “risk factors” in its quarterly filing. Public companies in the U.S. are required to disclose such risks to investors. It doesn’t mean Facebook’s revenue from Payments is about to collapse, but it means it’s enough of a concern that Facebook felt the need to disclose it.

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