Cybersecurity giant Imperva will acquire jSonar, a database security startup that recently landed $50 million from Goldman Sachs. Financial terms of the deal weren’t disclosed. The acquisition of jSonar, which provides security and compliance to databases on-premise or in the cloud, will help bolster Imperva’s data security business. As part of the deal, jSonar founder Ron Bennatan will join Imperva to lead its new data security division. Imperva provides enterprise security, including distributed denial-of-service attacks, to more than 6,200 companies.