The Krack hack is the latest attack on Wi-Fi networks that could wreak havoc on your computer.

Wireless security has a fundamental flaw that allows hackers with malicious intent to enter your device, which can only be combated by applying a number of proper practices to your network.

Here’s how you can avoid the Krack hack:

• Make sure that your Wi-Fi network has a password. Not having one puts you at risk for all sorts of attacks.
• Do not connect to unsecured Wi-Fi networks at coffee shops, public spots and hotels. Make sure these have passwords, and you can also tell whether or not they’re secure by a padlock on the side.
• The Krack attack can hit secure networks, which have a flaw in the “handshake” between device and router. It inserts a new key that can decrypt communications, potentially stealing stealing passwords and credit card data.
• When visiting a website, use https instead of http as the former is an encrypted version of banking and other websites with sensitive info. There will also be a padlock on the side.
• Update your router and find out how to patch it.
• If you’re still concerned about your security, use a “virtual private network” (VPN) such as TunnelBear.

Applying all these practices may not guarantee protection from Krack, but it will reduce your chances of getting hacked.