5 Threats to Your E-mail Server

5 Threats to Your E-mail Server

Email is one of most popular ways to do business. Nearly all communication in modern offices is done via email. It feeds everything — Slack and JIRA, account notifications, all. Hackers are attracted to email servers because they are easy targets.
Common methods are used by hackers to find vulnerabilities in your email server. These are the most serious threats that you must protect. Protecting your server is not just about using the latest technology, but also educating your users. For the sake of your company, we’ve listed the top threats to your server.
Weak authentication procedures
The log-in page is usually the weakest link. It’s actually the credentials you enter into the login page. Good authentication protocols and practices are your first defense against attackers.
Weak passwords. You can lock the first place hackers try to access by having a solid authentication plan. Hackers can easily access lists of phished email addresses and passwords. They may also use brute force attacks in order to guess passwords. Make it more difficult for them to succeed.
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Encourage your users to start training. They might be surprised at what they find, which highlights the importance of strong passwords.
No 2FA. Two-factor authentication is not required if an attacker enters the correct username or password. Encourage your users to use two factor authentication. Even better, require two-factor authentication.
SSL is not required. No SSL. Securely connecting to your email server should also be a concern. Your users could be vulnerable to man-in-the middle attacks without encryption.
Data leakage
There is always the possibility of sensitive data being leaked, regardless of whether it’s on a physical device and/or in the cloud. Despite all the security measures in place, this can still happen.
Data leakage can take many forms: Phishing and malware, as well as an attacker gaining physical access your email server. Even stolen mobile devices can be used to breach email accounts.
An attacker could send a simple attachment to trick the user into opening it on their computer. This attachment crawls the network looking for sensitive data and resources. The attacker can send the data back to the attachment. It is impossible to predict what will happen with the data.
Attackers could want to delete it or destroy it. Others may take it hostage for ransom. It could be sold on the black market.
Businesses can easily defend themselves against most of the methods attackers use to steal sensitive information. Remote wiping tools, for example, allow you to delete data from stolen phones.
Spam attacks can be prevented by installing email filters on your server. A few authentication methods can help you avoid spam email. Sender Policy Framework (SPF), which checks the sender’s IP address, ensures that it is on a whitelist of permitted senders. DomainKeys Identified Mail checks the digital signature of an email sent via DNS. Author Domain Signing Practices, (ADSP), verifies the domain of the author and authenticates the sender with DKIM.
While education can help users detect phishing attacks and these email security features can block phishing emails, they can also be used to protect their email data. Protecting the server by blocking executables and malicious macro files is a guaranteed way to do so.
DoS attacks
DoS attacks flood servers with traffic, causing email servers to fail. DoS is usually a flood of traffic.