Mitigating denial of service attacks in hierarchical wireless sensor networks

It is easy to see how these functions work in unison with each other. For example, attackers often use email to send malicious URLs to users. These may be spotted by email protection functions within a unified threat management system or Internet security appliance. However, if they slip through, they will be caught by the web filtering mechanism, making it doubly hard for attackers to compromise users. Anti-virus mechanisms built into the device will also scan for malware separately, providing yet another level of protection. Defence in depth is a crucial technique for any modern SMB that wants to protect itself against intrusion. Condensing multi-layered protection into a single device, updated by the vendor, provides the best protection for resource-constrained companies. Modern Internet security is an exercise in probability. It is impossible to guarantee 100% security – a determined hacker may still be able to gain access to a company’s system. But the more points protection that a company covers, the more likely it is to fend off the majority of generic attacks on the Internet. Can you afford not to cover your bases?