Israeli data governance/protection software firm Varonis is looking to raise $100M-$150M in a U.S. IPO that will value it at $500M, Globes reports The paper adds was in talks to buy the company for $450M a year ago. Varonis' software sets policies for, controls access to, provides an audit trail for a company's unstructured and semi-structured data (i.e. Office docs, pictures, etc.); rivals include Imperva (IMPV) and Symantec (SYMC). Globes' report comes on a day EMC announced it's buying identity/access management software firm Aveksa, reportedly for $225M+.