My brother got nasties on his computer that locked him out of the internet. As a result of this, i have been looking at PC security, and the following FREE bits of software are worth everyone knowing about:-
AntivirusThere's no excuse for not having an anti-virus. AVG Free (for home use) has been rated in the computer and tech press as a great piece of software. Just because it is free doesn't negate its effectiveness. If you actually pay for it, you can get extra protection above anti-virus:-
http://free.avg.com/ (not for Apple Mac)
APPLE MACs generally don't see viruses, and its only usually in your mail messages that you may receive them. You probably won't get 'infected' if you open a mail message but unwittingly you can pass it on. Have a look through the Apple web site for a free anti-virus for that ‘just in case’ moment:-
http://www.apple.com/downloads/macosx/networking_security/
FirewallFor free, generally accepted best (for now) is the Sunbelt-Kerio Personal Firewall. Causes few problems on the system and manages reasonable protection. Only annoyance is the message you will get after 30 days asking you to buy it. The Free version does keep working.
You need to uninstall any other Firewall first, otherwise it will conflict. (True of any Firewall)
Note: the well known ZoneAlarm Free although widely available, is considered a poor performer.
http://www.sunbeltsoftware.com/Home-Home-Office/Sunbelt-Personal-Firewall/APPLE MACs come with decent in-built Firewall settings. Make sure they are on, and refer to the Apple web site for more information. For instance for Mac OS X 10.5:-
http://docs.info.apple.com/article.html?path=Mac/10.5/en/11783.html
Email protectionIf you don’t recognize who the message is from, don’t open it! It could be a spammer looking to see if your email is valid (by opening your message you send a hidden response message that confirms your existence) or worse, it could have a virus / trojan / worm nasty malware attached to it that could infect your system. So never open mail from people you don’t trust!
Your bank will NEVER email you to ask for any kind of security or account confirmation, nor will they send you links to click to access your account, or confirm your details. No matter how convincing the email that appears to be from your bank, you bank will NEVER ask for your security or personal details on email. So never click banking links. If in any doubt telephone your bank to ask about the email you receive.
Browsing ProtectionWhen web browsing, many sites track where you go and what you like. It's ‘harmless’ but does allow them to potentially target advertising you see when you visit web sites, based on your viewing habits. You could set a home-page on your browser to open up the following site, that if you 'Select all' and Submit, you can opt out of all these tracking 'cookies', making your web browsing a bit more secure:-
http://networkadvertising.org/managing/opt_out.asp- PC Users should try setting their security levels to avoid trouble. Advice from Microsoft.com web site:-
http://www.microsoft.com/protect/computer/advanced/browsing.mspx- Set up your browser so it blocks pop-up windows. Pop-ups can be used to install nasties on your PC.
- Web downloads & applications that may be downloaded and run via your web browser should be preference set to NOT run automatically. You want the choice whether to run something you download. If you choose to download something, SAVE to your disk, check it and run from there. This will stop malware from getting into your system.
- To be honest, it is worth clearing cookies when you close your web browser just to clear up any possible bad ones that might have got installed while browsing. Its up to you if you also want to clear the cache and history when you finish browsing.
Use Firefox Web Browser!Apart from being web standard compliant (much more so than Internet Explorer), it is award winning, and offers some great add-ons that you can use to guard what happens when you are web browsing. Check out the Add-ons on the Firefox site:
http://www.mozilla.com/en-US/firefox/A couple of key Add-Ons that are worth installing:-
The '
NoScript' Add-on gives you control of what runs on your Firefox browser. You do have to teach it "Allow" for every new site you visit that you want to run, and you will find that sites will have all sorts of scripts that need to run to make the page display properly (can be annoying at first). The point is that it puts you in control of what happens when you visit a web page, and all-but eliminates your risk of malware getting into your computer, because you choose what can run and allow it to run every time you visit the site, or you can just temporarily turn it on if you wish.
NOTE: It is worth checking the 'NoScript' icon on your web browser as you do online shopping because you will need to allow a variety of scripts and sites associated with payment processing (ideally permanently) in order to complete transactions.
https://addons.mozilla.org/en-US/firefox/addon/722The '
WOT' Add-on watches web sites and helps protect you from browsing scamming sites, malware, spam etc.
https://addons.mozilla.org/en-US/firefox/addon/3456The '
AdBlock' Add-On which stops lots of annoying ads and banners on web pages.
https://addons.mozilla.org/en-US/firefox/addon/1865
Do YOU have spyware or viruses on your computer?You'd be surprised what gets in... If you have the above security, you should already have limited your risk, and if you do a 'spyware' scan using one of the below, some 'spyware' it detects is nothing more than a 'harmless' web browsing tracking 'cookie' used by web sites to log your visit.
For more about cookies read this from Microsoft.com :-
http://www.microsoft.com/info/cookies.mspx If you think your system has malware nasties, and you want to scan it, the free online scanner service from F-Secure is recommended by a number of leading banks:-
http://www.f-secure.com/security_center/ (not for Apple Mac)
You can also use the Microsoft Malicious Software Tool:-
http://www.microsoft.com/security/malwareremove/default.mspx (not for Apple Mac)
CONCLUSIONIt may seem the world is out to get you, and to a point, unless your security is good, and your online activities carefully considered, you can unwittingly let in nasty malicious software to your computer. I use an Apple Mac, behind a broadband modem router which also has a Firewall. Although I am not complacent, I have my Firewall on and do occasional anti-virus scans. The only nasties I get are spam emails. And they are rare because of my ISP (
plus.net) who filters so effectively now that I see so little in the way of spam.
PCs are more open to attack as they are the most common computer platform. So get yourself safe, adopt the attitude that you are likely to be ‘attacked’ and behave online and with email accordingly, and you should be pretty safe ☺