Hunter Biden sues IRS! Will the whistleblowers counter sue him?

Hunter Biden is suing the IRS. His complaints are:
(1) unlawful disclosure of Mr. Biden’s confidential tax return information in violation of 26 U.S.C. § 6103 and 28 U.S.C. § 7431, and
(2) willful and intentional failure to establish appropriate administrative, technical, and/or physical safeguards over the IRS’s records system to insure the security and confidentiality of Mr. Biden’s confidential tax return information in violation of the Privacy Act, 5 U.S.C. § 552a.”

https://storage.courtlistener.com/recap/gov.uscourts.dcd.259799/gov.uscourts.dcd.259799.1.0_1.pdf