Verizon reportedly demanding $1B Yahoo discount over $4.83B Yahoo deal. Yahoo’s failure to spot a massive breach of its systems in late 2014, leading to the theft of information relating to at least 500 million users, could cost the company’s shareholders $1 billion. But relatively few businesses face long-term repercussions from a breach. Breached Businesses typically face few long-Term Repercussions, but some security firms are still soldiering on. “How much is privacy actually worth?” asks Surrey University computer science professor.”]