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Email was created with the goal of being as open and accessible as possible. It enables employees to communicate with one another as well as with employees from other firms. The issue is that email is insecure. This enables attackers to exploit email to cause problems in order to profit. Whether through spam campaigns, malware and phishing attacks, sophisticated targeted attacks, or corporate email compromise (BEC), attackers attempt to use email’s lack of security to carry out their attacks. Because most businesses rely on email to do business, attackers use email to steal important information.
Because email is an open format, it can be read by anybody who can intercept it, raising worries about email security. This became a problem as businesses began exchanging secret or sensitive information via email. Intercepting an email allows an attacker to readily access its contents. Organisations have increased email security measures over the years to make it more difficult for attackers to obtain sensitive or secret information.
Because email is so important in today’s business environment, firms have policies in place to govern how this information is handled. Viewing the contents of emails coming via their email servers is one of the first practices most corporations set. It is critical to comprehend the entirety of the email in order to behave effectively. Following the implementation of these baseline principles, an organisation can enact various security measures on those emails.
Email security rules can range from as simple as deleting all executable content from emails to more involved steps such as forwarding questionable content to a sandboxing tool for comprehensive investigation. If these procedures detect security issues, the organisation must have actionable intelligence about the scope of the assault. This will aid in determining the extent of the attack’s harm. Once a company has visibility into all emails sent, it can enact email encryption policies to prevent sensitive email information from slipping into the hands of the wrong people.
Implementing a secure email gateway is one of the first best practices that enterprises should employ. An email gateway examines and analyses every incoming and outgoing email to ensure that no dangers enter. Because attacks are becoming more sophisticated, traditional security methods such as banning known malicious file attachments are no longer effective. A more effective solution is to set up a secure email gateway that employs a multi-layered technique.
As a best practice, it is also critical to establish an automated email encryption solution. This solution should be capable of analysing every outbound email traffic in order to identify whether the content is sensitive. If the content is confidential, it must be encrypted before being emailed to the designated recipient. Even if attackers intercept emails, this will prevent them from accessing them.
Training staff on proper email usage and understanding what constitutes a good and bad email is another crucial best practice for email security. Users may receive a malicious email that has gotten past the secure email gateway, thus it’s vital that they know what to look for. They are frequently subjected to phishing attacks, which have clear indicators. Employees that receive training are better able to identify and report on these types of emails.
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