What is External Cybersecurity?
External cybersecurity refers to the method through which an organization’s online-facing infrastructure is protected against any form of cyber attacks. Some of the elements that may be involved in external cybersecurity include websites, email servers, cloud apps, remote access platforms, API, and public IP addresses, among others. The reason why such elements are involved is that these components are usually connected to the internet, and they are, therefore, at risk from any cyber-attack.
The Importance of External Cybersecurity
Contemporary businesses use online services extensively; hence, the need for external cybersecurity is greater than ever before. Cyber criminals constantly scan the internet for exposed systems, weak credentials, out-of-date software, and unprotected cloud services. Any successful attack might lead to data theft, ransomware infections, monetary losses, and decreased customers’ trust. With consistent monitoring of external assets, the company can discover vulnerabilities and eliminate them before they create any real problems for the company’s security.
The Components of External Cybersecurity
External cybersecurity is comprised of several elements: consistent monitoring, vulnerability scanning, threat intelligence, and security assessment. Security teams constantly track exposed assets, errors in configurations, and suspicious activities within public networks. In addition, many companies use Attack Surface Management tools (ASM) to have visibility of their entire external asset base.
Email Authentication Through DMARC Protocol
The term DMARC stands for Domain-based Message Authentication, Reporting, and Conformance. DMARC is an email authentication tool that can be used to secure your domain against any attack such as email spoofing, phishing, or even BEC attacks. This protocol is used in combination with SPF(Sender Policy Framework) and DKIM(DomainKeys Identified Mail) protocols to check whether an email claiming to come from the domain is indeed sent from the same.
Working of DMARC
The DMARC protocol is activated once the email arrives at the recipient’s mail server. If the email fails the SPF and DKIM tests, then depending on the DMARC policy configured by the domain owner, the server can accept the email, quarantine the email, or reject the email completely. Additionally, the DMARC protocol generates reports that are helpful for organizations in securing their email communication in the future.
Advantages of DMARC Implementation
There will be fewer phishing scams impersonating the enterprise’s domain in case of DMARC implementation. Increased email delivery is witnessed, where more emails will reach customers’ mailboxes compared to ending up in spam. The enterprise will enjoy increased visibility on the emails, which will enable the enterprise to identify any misuse of its domain. With the email authentication capability, there will be customer trust of the emails since the emails will originate from the company.
How to Create an Effective Security Strategy?
External cybersecurity and DMARC are complementary since they provide security for different areas in the digital domain of the enterprise. Whereas external cybersecurity will keep hacker attacks off the internet, DMARC will protect the business emails from impersonation attacks.