The BBC is reporting that three new serious security bugs in Internet Explorer have been found, two of which will let an attacker take over your computer.
Security firms said specially written websites and hijacked servers were already being used to host the malicious code that uses the loopholes to invade vulnerable machines.
Microsoft will not fix this until April 11th so until that day everyone using Internet Explorer on Windows is vulnerable.
Don’t panic – there is a free alternative! Firefox is a state-of-the-art web browser that will let you surf the net safely.