Generally not in either party's interest to leak (unless it's a negotiation tactic). But unfortunately when you are closing a sale there are a bunch of people

Generally not in either party's interest to leak (unless it's a negotiation tactic). But unfortunately when you are closing a sale there are a bunch of people you have to talk to (investors, lawyers, accountants etc) and it only takes one person with questionable scruples to email techcrunch.