protection Archives - ClouDNS Blog

Phishing attacks are a real danger for every business. It can severely damage the brand name, and it can lead to less trust and leaving of clients. The attackers can spam or phish with emails that use your brand logo and looks just like your emails. Even you won’t see a difference between one of these fake emails and the original emails sent from your servers. We have already talked about SPF and how it verifies the outgoing mail server. There is also another DKIM technology for signing emails. Domain-based Message Authentication (DMARC) uses both of them to take pre-defined actions. Double protection for lowering the chances of phishing and report system for better management.

DMARC

Continue reading “DMARC, the solution for your phishing problems”

There are different security methods out there, but when it comes to data filtering, there are two widely-used ones. You can use either whitelist (allow, give a permit) or blacklist (block, put in the list of forbidden). There is a big debate in the IT community which is better. Whitelisting vs Blacklisting.

Many IT specialists say that whitelisting leads to better protection, but it has too many limitations. It takes too much time and needs continuous changes. This generates more expenses. On the other side is the blacklisting. You simply put all the problematic devices in a blacklist and they no longer can engage with your network. But can you block all of them?

Let’s check them out and we later you can make your choice on the “Whitelisting vs Blacklisting” debate.

Whitelisting vs Blacklisting

Continue reading “Whitelisting vs Blacklisting, preventing or reacting”