Malware
Firewall
In Turkish: Güvenlik duvarı (firewall)
A filter that decides which connections may enter or leave your device or network, blocking the ones nobody asked for.
Think of a firewall as a doorman: it lets in answers to requests you made and turns away unsolicited knocks. Your computer has one built in, and your home router usually has one too.
It matters most on public networks and for laptops you carry around. Turning it off to make one program work fixes that program but leaves the door open to everything else.
What to do
- Check that the system firewall is on, especially on laptops.
- Do not turn it off to fix a problem; allow the single program instead.
- Leave the router's firewall and its default protection on.