Harman, whose biggest business is selling infotainment and audio products to global automakers, did not disclose the terms of the deal.

Ann Arbor, Michigan-based TowerSec's core software security products detect and prevent hacking and intrusions in real time.

Harman's acquisition comes in the midst of a debate over the safety of increasingly connected cars and trucks, especially after veteran cybersecurity researchers showed in July they can use the Internet to hack into a moving car and seize control.

(Reporting by Sai Sachin R in Bengaluru; Editing by Sriraj Kalluvila)