In the past week, many have called for an apology from Snapchat, and even for CEO Evan Spiegel's job. Today's apology won't entirely satisfy Snapchat critics, but is a wise move nonetheless for the young company as it faces perhaps its biggest PR disaster to date. Snapchat also said in its blog that when users first install the app and attempt to find friends using their phone number, it will verify their number — presumably by texting them a code to enter into the app. This measure should, theoretically, cut down on the number of requests hackers can make from its API, the crux of the company's original security issue.

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