WikiLeaks founder Julian Assange pledged Thursday to provide technology companies with the technical details needed to fix product flaws that were exposed when his organization published documents that apparently show how the Central Intelligence Agency hacks into phones and other devices. The 8,761 documents that WikiLeaks posted on its website Tuesday described malware and other tools used to exploit a wide range of commercial products including smartphones, software and equipment from Apple, Alphabet’s Google, Samsung, and Microsoft. The documents sent companies scrambling to uncover what...