Staying Safe on a Shared Network

A LAN party is a friendly environment, but technically, it’s a public network. Hundreds of unknown devices are connected to the same switches. You don’t need to be paranoid, but basic precautions are mandatory.

1. Treat it like a Public Network

When Windows asks if the network is “Private” or “Public”, Public is the safer choice as it hides your computer.

Note: For LAN gaming, you might need to switch to Private or allow the game through the firewall. See: Firewall and Antivirus Checks.

2. Keep Your Firewall On

Never completely disable Windows Defender or your firewall. If a game isn’t working, allow only that specific port/application instead of turning off all protection.

3. Close Unnecessary Ports

• Turn off file sharing if you aren’t using it.
• If you are a developer (Docker, web servers, databases), don’t leave them running bound to 0.0.0.0 without password protection. You don’t want someone accidentally (or intentionally) wiping your projects.

4. Lock Your Screen (Win + L)

Whenever you leave your desk (bathroom, food, sleep), always lock your screen.

• Windows: Win + L
• Mac: Ctrl + Cmd + Q

This protects you from “funny” messages sent in your name and secures your accounts.

5. Use Only Official Networks

• Wired: Plug directly into the wall jack.
• Wi-Fi: Connect only to the official SSID. If you see “Free Wifi” or similar networks that aren’t ours, do not connect - they could be phishing attempts.

+1: Update!

The best defense is keeping your OS and software up to date. Updates patch 99% of security vulnerabilities.