 NEW ORLEANS--BUSINESS WIRE--Former Attorney General of Louisiana Charles C. Foti, Jr., Esq. and the law firm of Kahn Swick Foti, LLC KSF are investigating the proposed sale of Proofpoint, Inc. NasdaqGS: PFPT to Thoma Bravo. Under the terms of the proposed transaction, shareholders of Proofpoint will receive only 176.00 in cash for each share of Proofpoint that they own. KSF is seeking to determine whether this consideration and the process that led to it are adequate, or whether 