(Bloomberg) -- Dropbox Inc. said its digital-signature product, Dropbox Sign, was breached by hackers, who accessed user information including emails, user names and phone numbers.Most Read from BloombergUS and Saudis Near Defense Pact Meant to Reshape Middle EastJerome Powell Offered Markets a Reprieve. It Vanished in a BlinkTesla Axes Supercharger Team in Blow to Broader EV MarketNYPD Arrests Over 300 Protesters in Crackdown on College CampusesBiden Calls Ally Japan ‘Xenophobic’ Along With Chi