Yahoo profit beats Wall St., some analysts worry over effect of hack

By Deborah M. Todd SAN FRANCISCO (Reuters) - Yahoo Inc reported better-than-expected quarterly adjusted profit on Tuesday, a boost for the beleaguered company whose deal to sell its core business to Verizon Communications Inc has been shaken by a massive data breach. Verizon's general counsel said last week that the hack, which affected at least 500 million email accounts in 2014, could have a material impact, possibly allowing Verizon to withdraw from the $4.83 billion deal. Tuesday's results p