Network Security 8th Sem Notes. How secure is your network? Are you sure your data is safe from hackers? If you answered yes, then you might want to read this article. In this post, I’ll show you techniques to improve network security.
1. Use a password manager
What do you use for your passwords? If you’re like most people, it’s probably the same password for everything, or maybe a random combination of letters and numbers that’s easy to remember.
Those are terrible ways to manage passwords. You need strong passwords, and you need to change them frequently. The best way to do this is through a password manager. There are many popular ones out there, but my personal favorite is 1Password (which is available on Mac, Windows and iOS devices).
2. Encrypt your hard drive with BitLocker or FileVault
Imagine going into work one morning only to discover that someone has broken into your office overnight and stolen all of your company’s secrets. What would happen if they managed to get away with it? You’d probably lose your job at the very least, and possibly even be charged with criminal negligence or worse!
Well, there is encryption! Encrypting your hard drive means that anyone who tries to access it without permission will only see random gibberish instead of anything useful. This makes encryption a great tool in the fight against data thieves.
3. Use a secure password for your Wi-Fi network
What do you use as a password for your Wi-Fi network? If you’re like most people, it’s probably something like “123456789”. If so then anyone who can connect to your wireless network can easily join in! Change that password right now!
It’s easy to set up a secure password using the Wi-Fi Protected Setup feature built into most modern routers. After that, the next time someone tries to connect to your wireless network, they’ll need its security key in order to join in — and that means you won’t have any more intruders!
4. Set up two-factor authentication for all accounts that support it
You may have heard of two-factor authentication already — it’s a method of confirming your identity by requiring two different types of information (such as an email address and a password). This makes it much harder for someone else to break in and steal your data because they’ll need more than just one thing (your username) in order to log in successfully.
5. Use HTTPS Everywhere
The next time you visit an unencrypted website, you’ll want to make sure it uses HTTPS instead. HTTPS Everywhere is a browser extension for both Chrome and Firefox that does just that — it automatically directs you to the encrypted version of a website if possible.
This is how you can make sure that your entire web browsing experience is encrypted, and it’s especially important for banking and shopping sites (which are two popular targets for hackers).
6. Encrypt your email with PGP
One of the best things about email is that it lets you communicate with others from anywhere in the world — but this also means that anyone else can do the same! If someone else gets ahold of your email account, they can read all of your messages without even needing access to your computer.
This isn’t just a theoretical problem — many famous politicians and celebrities have had their email accounts hacked and leaked to the public in recent years. There’s one way to protect yourself against this: encryption! In fact, PGP (Pretty Good Privacy) is one of the oldest and most trusted encryption methods out there.
7. Use secure Wi-Fi networks whenever possible
This one is pretty obvious, but it’s important enough that I thought it deserved its own section. When you connect to an unknown Wi-Fi network, there’s no telling who might be able to access your data! Always look for the “lock” icon or “HTTPS://” in the URL before connecting. If neither is present then don’t connect at all!