Christopher Henderson was brought in to perform a sting operation on Malina when CTU discovered that Bierko was planning another terrorist strike. As Henderson warned CTU prior, Malina had an extremely secure firewall that would make decryption extremely difficult. Accounting for this, during the sting op, Henderson told Malina that CTU agents were outside -- this duped him into dumping his files onto a flash drive, which did not have the security of the firewall. However, Jack Bauer misinterpreted Henderson's plan, thinking that he had sold CTU out. He, along with the TAC team, stormed Malina's apartment before all the files could be transferred to the drive. Malina injured Curtis Manning with a gunshot to the arm, but was shot in the hip by Bauer. He was transported to CTU Los Angeles for interrogation.
As the investigation into his file revealed, Malina had sold to Bierko the specs needed to attack and takeover the Natalia ship.