Results for “block an app”
- Help · Blocking & firewall rules How to block an app from accessing the internet Right-click the app in the Live tab and choose Block this app, then permanent, 10 minutes or 1 hour. NetSecWall adds a block rule and closes the app's open connections.
- Help · Blocking & firewall rules Unblock an app or remove a rule Open the Rules tab, select the app's block rule and delete it. NetSecWall removes the rule and forgets the block, so it doesn't come back the next time NetSecWall starts.
- Help · Blocking & firewall rules Blocking in NetSecWall: rules and what they actually do A blocked app isn't killed or changed; it just loses network access. NetSecWall can block an app, a country, a website category or everything, and lists every rule it makes in the Rules tab.
- Help · Blocking & firewall rules Create a custom firewall rule for a port, address or inbound traffic In the Rules tab, click New rule… and set the direction, action, protocol, program, ports and addresses. The result is an ordinary Windows Firewall rule that stays whether NetSecWall runs or not.
- Help · Blocking & firewall rules Learning mode: approve each new app before it connects Turn on Protection ▸ Filtering mode ▸ Learning. A program new to NetSecWall is held back the moment it connects, and a pop-up asks you to Allow, Allow once or Block it.
- Help · Blocking & firewall rules Manage every Windows Firewall rule from the Rules tab The Rules tab lists NetSecWall's blocks and, on request, every rule in Windows Defender Firewall. Turn the firewall on or off, filter, create, edit, disable, delete and export rules.
- Blog · How-to guides Find what's eating your bandwidth in the background Sort Task Manager's Network column or Resource Monitor's Network Activity to catch what is using your bandwidth right now. To catch what used it an hour ago, you need per-app history.
- Blog · How-to guides How to block a country on Windows Windows has no country switch, so you block the country's IP ranges with firewall rules. NetSecWall does it with one right-click; geolocation is approximate, and CDNs and VPNs blur borders.
- Blog · How-to guides How to block a program in Windows Firewall, two ways Create an outbound rule for the program's .exe in Windows Defender Firewall with Advanced Security, set to Block the connection. Or right-click the program in NetSecWall and choose Block.
- Blog · Privacy How to stop apps from phoning home on Windows See what each app contacts, decide which calls you'd miss, then block the rest: the whole app, just its updater or crash reporter, or ad and tracking domains across every app.
- Blog · Product news Introducing the NetSecWall Help Center and blog The NetSecWall Help Center at /kb/ has step-by-step guides with real screenshots, sorted by topic and product and searchable. The blog at /blog/ explains the problems behind them.
- Blog · How-to guides Keep the app, cut its internet: blocking without uninstalling Block the program's outbound connections instead of removing it. The app still opens and works offline; it just can't reach the internet until you lift the block.
- Blog · Security & threats Living off the land: when Windows' own tools go rogue Attackers often skip custom malware and use tools Windows already ships, such as PowerShell, certutil and mshta. The files are genuine, so the tell is behavior, like those tools reaching the internet.
- Blog · Security & threats When a trusted app's file suddenly changes A trusted app's file changing usually means an update. Worry when the change brings a lost or broken signature, or new destinations — the marks of a tampered, supply-chain-compromised app.
- Blog · Security & threats Why is an app on my PC talking to a Tor exit node? Usually because something on your PC accepts connections arriving through Tor, a peer-to-peer app met a Tor user, or a program uses Tor itself. Malware does too, so check the app and direction.
- Blog · Security & threats Windows Firewall allows outbound traffic by default: why that matters Out of the box, Windows Defender Firewall blocks unsolicited inbound connections but lets every program connect out. That keeps things working, and it means nothing stops an unwanted app phoning home.