Ethical hacker Ankit Fadia on Wednesday advised students to use the Internet safely.

He was addressing a seminar on ethical hacking at Arcade Business College. “Using sites like Gmail and Hotmail can create problems if they are hacked. Apart from removing data, the hacker can also send emails from the hacked accounts,” he said.

If a hacker successfully installs Trojan, a virus, on a particular system, it would be possible for him to control the software and hardware,” Fadia said. Like computers, cellphone activities can also be tracked by installing SpyPig software.