What should modern email security protect against?
Email remains one of the most common ways attackers target professional firms. Microsoft 365 provides important native protections, but firms with higher security and compliance requirements often need an additional managed security layer around email.
ProCirrus includes an enhanced email-security service with every managed account and offers higher protection levels when a firm needs additional security, compliance, training, or archiving capabilities.
Email security is more than spam filtering
Modern email attacks are designed to get past simple spam and antivirus controls.
A strong email-security layer should help identify and block threats such as phishing, malicious links, malicious attachments, impersonation, credential theft, ransomware, and business email compromise.
Advanced protection can also evaluate links when users click them and analyze suspicious attachments before they reach the user, adding protection against threats that may not be obvious when a message first arrives.
Business email compromise requires a different type of protection
Some of the most damaging email attacks do not contain malware at all.
An attacker may impersonate an executive, vendor, client, or employee and attempt to convince someone to change payment instructions, disclose credentials, transfer funds, or release sensitive information.
Modern email security therefore has to evaluate the sender, message behavior, URLs, attachments, and indicators of impersonation rather than relying only on traditional malware detection.
Email also needs outbound protection
Security is not limited to what comes into the organization.
Outbound controls can help identify sensitive information leaving by email, apply content policies, encrypt appropriate messages, and reduce the likelihood that confidential information is transmitted inappropriately.
For professional firms handling client, financial, legal, or regulated information, those controls can become an important part of the broader data-protection and compliance model.
Technology alone cannot stop every phishing attempt
Attackers increasingly target people rather than simply targeting systems.
Security-awareness programs can complement technical email controls with simulated phishing campaigns, user education, and targeted training. The goal is to help employees recognize suspicious messages and understand what to do when they encounter one.
For firms with heightened security requirements, phishing simulation and awareness training can also provide measurable evidence that users are receiving ongoing security education.
Email archiving serves a different purpose
Backup, email security, and compliance archiving are separate functions.
A compliance archive creates an independent, searchable historical record of email that can support retention requirements, investigations, legal discovery, regulatory requests, and other compliance needs.
Depending on the service level selected, archive capabilities can include tamper-resistant offsite retention, search, eDiscovery, and long-term message storage.
Different firms require different levels of protection
Not every organization has identical email-security requirements.
ProCirrus includes our Business Plus email-security level with managed Microsoft 365 accounts so every user receives an additional security layer beyond the underlying Microsoft service.
Firms with greater security or compliance requirements can move to Advanced or Professional service levels, adding capabilities appropriate to their needs. Additional services such as security-awareness training, simulated phishing, and compliance email archiving can also be incorporated into the firm's security program.
The ProCirrus approach
ProCirrus treats email as part of the broader managed security environment rather than as a standalone mailbox service.
Microsoft 365 provides the core messaging platform. ProCirrus adds and manages an additional email-security layer designed to protect users from phishing, malicious content, impersonation, business email compromise, and other email-borne threats.
Where required, that protection can be extended with enhanced security levels, user training and phishing simulation, outbound data controls, continuity, and compliance archiving.
The objective is straightforward: protect the mailbox, protect the information moving through it, and help protect the person sitting in front of it.