What is US' Mark 48 torpedo, single weapon that sunk an Iranian warship that left India?

Mark 48 torpedo, used by US to attack an Iranian warship that left India, uses both passive and active sonar and digital electronics to detect, classify, localise, and intercept targets. Operators can guide the acoustic-homing torpedo in real time to update targeting and adjust its path. Its guidance system allows for repeated upgrades to counter evolving threats through software upgrades.