BitDefender is one of the best antivirus software maker in the world. Its core anti-virus engine and signature database are used by a number of other famous anti-malware suites such as F-Secure, G Data , BullGuard, Advanced SystemCare Ultimate, etc. BitDefender Internet Security is a capable product from BitDefender. This all-in-one security suite delivers comprehensive proactive protection against the latest viruses, spyware and online identity theft in an easy-to-use, intuitive package that won’t slow you down – allowing you to enjoy your online experience without interrupting. BitDefender Internet Security 2015 is priced at 69.95$ for one year license key / serial number on up to 3 PCs. But as part of the promo offer by Bitdefender, users can use the award winning software absolutely free for 6 months. Offer valid for a limited time only, which means it’s probably best to grab the goods while the offer is still live.