General security

Breaking the Silo: Integrating Email Security with XDR

Gilad Maayan
April 27, 2023 by
Gilad Maayan

Email security encompasses protecting email communications and data from unauthorized access, hacking, spam and other cyber threats. It involves implementing various technical and non-technical solutions to secure email communications and data at all stages of the email life cycle, from creation to delivery to storage.

Some common email security measures include:

  • Encryption: Encrypt emails and attachments to protect their contents from unauthorized access.
  • Authentication: Verifying the identity of the sender and recipient to prevent email spoofing and impersonation.
  • Spam filters: Blocking unwanted and potentially harmful emails from reaching the inbox.
  • Firewall protection: Protecting the email server from unauthorized access and cyberattacks.
  • Malware protection: Detecting and preventing the spread of malware through email attachments and links.
  • Data backup and recovery: Regularly backing up email data to ensure it can be recovered in the event of data loss or corruption.

FREE role-guided training plans

FREE role-guided training plans

Get 12 cybersecurity training plans — one for each of the most common roles requested by employers.

Email security is important for several reasons:

  • It protects sensitive information: Emails are often used to store and transmit sensitive information, such as financial data, personal information, and confidential business information. If this information falls into the wrong hands, it can be used for identity theft, financial fraud, or other malicious activities.
  • It helps prevent data breaches: Unsecured emails can be intercepted and read by unauthorized individuals, leading to a data breach. Data breaches can result in the loss or theft of sensitive information and have serious consequences, such as financial losses, reputational damage, and legal liabilities.
  • It helps ensure regulatory compliance: Certain industries and government agencies are subject to regulations that require the protection of sensitive information, such as the Health Insurance Portability and Accountability Act (HIPAA) in the healthcare industry, the Payment Card Industry Data Security Standard (PCI DSS) in the retail industry, and the General Data Protection Regulation (GDPR) in the European Union. Email security measures can help organizations comply with these regulations.
  • Maintaining productivity: Unsecured emails can lead to downtime and lost productivity due to data breaches, malware infections, and spam. Implementing email security measures can minimize these disruptions and keep the organization running smoothly.

What are the common threats to email security?


Phishing is a social engineering attack that uses email and other communication forms to trick users into revealing sensitive information, such as passwords or credit card numbers. Phishing emails often appear to be from a trustworthy source, such as a bank or other financial institution and may contain a malicious link or attachment. The goal is to trick the recipient into providing information that can be used for identity theft, financial fraud or other malicious purposes.


Malware is any malicious software designed to cause harm to a computer or network. Malware can be spread through email attachments or links, and once installed on a device, it can steal sensitive information, damage files, or take control of the device. Many types of malware exist, including viruses, worms, trojan horses and ransomware.


Spam refers to unsolicited, unwanted emails, such as advertisements, scams, or phishing attempts. Spam can be a nuisance and contain harmful links or attachments that can spread malware or steal personal information. In addition, spam can consume a significant amount of bandwidth and storage space, leading to decreased performance and increased costs for organizations.

Data Loss

Email data can be lost or stolen due to hacking attacks, system failures, or human error. Data loss can have serious consequences, such as financial losses, reputational damage, and legal liabilities. To prevent data loss, it is important to regularly back up email data and have a plan for data recovery in the event of an unexpected outage.

Botnets and DDoS

A botnet is a network of infected devices that a hacker can control remotely. Botnets can be used to launch Distributed Denial of Service (DDoS) attacks, which overload a server or network with traffic and cause it to become unavailable. DDoS attacks can target email servers, resulting in downtime, lost productivity, and reputational damage. 

What Is XDR?

Extended detection and response (XDR) is a security solution that combines multiple security technologies and data sources to provide a more comprehensive and integrated approach to threat detection and response. XDR solutions typically integrate security information and event management (SIEM), endpoint protection, network security and cloud security to provide a unified view of the entire security landscape.

XDR solutions are designed to provide real-time visibility into the entire threat lifecycle, from initial detection to containment and remediation. XDR solutions typically use artificial intelligence (AI) and machine learning algorithms to analyze security data from multiple sources and identify potential threats. This data prioritizes and triages security incidents, allowing security teams to respond more quickly and effectively to high-priority threats.

Integrating email security with XDR

Integrating email security with an XDR solution can give organizations a more comprehensive view of their security posture and help them better detect, respond to, and remediate email-based threats.

Here are some ways that email security can be integrated with XDR:

  • Threat detection: XDR solutions can use data from email security tools, such as anti-spam filters, to identify and detect threats. For example, suppose an anti-spam filter identifies a phishing email. In that case, XDR can use this information to trigger an investigation into the email and other security events to determine if a larger attack is underway.
  • Threat response: XDR solutions can use data from email security tools to respond automatically to threats. For example, if an anti-spam filter identifies a malicious email, XDR can automatically quarantine the email and block any malicious URLs or attachments.
  • Threat remediation: XDR solutions can use data from email security tools to inform remediation efforts. For example, suppose an anti-spam filter identifies a phishing email. In that case, XDR can provide information about the email to the security team, including the sender, subject, and recipient, to help them determine the best course of action.
  • Threat intelligence: XDR solutions can use data from email security tools to improve threat intelligence and security operations. For example, suppose an anti-spam filter identifies a new phishing campaign. In that case, XDR can use this information to update its threat intelligence database and inform other security tools to help them better detect and respond to similar threats in the future.

By integrating email security with XDR, organizations can gain a more comprehensive view of their security posture and improve their ability to detect, respond to, and remediate email-based threats. This can help organizations reduce their risk of a security breach and improve their overall security posture.

XDR and email

Integrating email security with XDR is vital to achieving a more comprehensive and effective approach to cyber security. By breaking down the silos between different security technologies and data sources, organizations can gain a unified view of their security landscape and respond more efficiently and effectively to cyber threats. 

Gilad Maayan
Gilad Maayan

Gilad David Maayan is a technology writer who has worked with over 150 technology companies including SAP, Imperva, Samsung NEXT, NetApp and Ixia, producing technical and thought leadership content that elucidates technical solutions for developers and IT leadership. Today he heads Agile SEO, the leading marketing agency in the technology industry.