Wi-Fi Krack Attack

How To Protect Your Wi-Fi From A Krack Attack

A serious Wi-Fi vulnerability was revealed today, affecting nearly every Wi-Fi network and device using WPA or WPA2 security encryption.

It is a scary flaw since it can allow an attacker to intercept data from a nearby Wi-Fi network, including passwords, photos, credit card information, private messages, emails and web activity. Basically, anything that’s normally protected and encrypted by the WPA2 standard.

Firstly Let’s Know What is Krack

The alarming flaw was nicknamed KRACK means short for Key Reinstallation Attack.

An attacker can capture data from a nearby WPA2 protected Wi-Fi network by impersonating it and cloning its MAC address (a MAC address is a Wi-Fi gadget’s unique network identifier).

Wi-Fi Krack Attack

How to protect yourself from KRACK

1. Update Your Devices and Software

To fix the security vulnerabilities you need to upgrade the firmware in your router, a process known as ‘flashing’. You will need to find and follow the manufacturers instructions that came with the router. If you can’t find it then don’t panic, as most can be found online these days. It’s fairly quick and relatively simple to do but take care to follow the steps correctly as it can be easy to make mistakes, which may result in a visit to the computer or IT specialist shop to sort.

2. Use Encryption

Encrypting your data can keep it protected and hide it from the hackers. A VPN (virtual private network) is a great tool to use to secure your personal and financial information while you’re online because it masks your IP address and essentially hides your data. It is especially useful when you’re out and using open Wi-Fi, but it can protect you against the KRACK vulnerability when you’re using a “secure” connection at home or work as well.


Hyper Text Transport Protocol Secure – the key here is the S on the end as it signifies that this is the secure version of the protocol which sends your data between your browser and the website that you are connected to. It encrypts all the information that is sent and means that even if a hacker had access, the information would be illegible and meaningless to them. This is the type of security that is used by most financial and e-commerce but it is best practice check your browser for the little lock icon you see in your URL window (usually found at the top left of your screen) before you share any sensitive information.

4. Keeping your business Wi-Fi safe

Using a public Wi-Fi service provider means that you and your customers have peace of mind. The login process is done by signing up securely and uses unique details such as email addresses or social media logins and will automatically log the customer back in on their return.The public Wi-Fi companies will ensure that all automatic updates are applied exactly as stated i.e. automatically.

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