Email security was a headache for tech giants (and even some smaller companies) in the late 1990s. It was the time when threat actors started exploiting email communications to attempt impersonation, spoofing, and phishing-based attacks in the names of reputed companies and domain owners. Considering the rise in email-based cyber menaces, many experts got involved…
SPF records, as you may be aware, are like the bouncers of your email servers. They’re the DNS records that explicitly specify which email servers are officially allowed to send emails on behalf of your brand. By defining this list, domain owners keep out the riff-raff, preventing unauthorized people from sending emails that could tarnish…
Threat actors look for unprotected emails. They use various social engineering and phishing tactics to manipulate recipients into sharing confidential information, transferring money, downloading malware-infected files, etc. In 2023, 94% of organizations had email security issues, and considering the rise in email menaces, even Google and Yahoo explicitly state the importance of DMARC adoption. These…
All the IP addresses that you officially allow to be used for sending emails on your behalf are listed in an SPF record. When domain owners have to mention multiple IP addresses, they often use the CIDR (Classless Inter-Domain Routing) notation as it’s a way of representing IP address ranges in a compact manner. Using…
Here’s a harsh truth- your customers’ card transactions are not as secure as you might think. Even though card payments have opened up new avenues in the business world, there exists a problem! This payment method puts your customers at risk of credit card theft and jeopardizes the credibility of your business. Given the current…
Sender Policy Framework is an email authentication protocol that allows a domain owner to publish an SPF record corresponding to their name. This SPF record includes a list of IP addresses and mail servers that the domain owner officially authorizes to be used for sending emails from. When the email reaches the recipient’s server, it…
Email authentication, a crucial practice in today’s digital world, is the process of verifying the true identity of an email sender. By implementing robust protocols, domain administrators and business owners can effectively combat phishing and spoofing attacks that often exploit their brand identity. SPF or Sender Policy Framework, is one of the oldest email authentication…
Have you ever come across a URL that seems legitimate at first glance, yet there is something fishy about it? In most cases, if you look closely, you will notice something slightly strange about these websites, perhaps a character that doesn’t quite fit or a slight variation in the spelling. This is a classic case…
During the tax season, cybercriminals impersonate IRS officials and call taxpayers, scarring them into taking desperate and hasty action. If you fall victim to their tactics, you could potentially lose a significant amount of money or even face legal consequences. They might request your financial details to redirect the tax rebate to their account or…
For network administrators, understanding DNS packet fragmentation is crucial. When a DNS response packet is large and unable to fit within the MTU size, it’s divided into smaller fragments. MTU, or the maximum transmission unit, is the largest size of a packet or frame that can be sent across a data link. This process affects…
