Communication Security

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At Checkdone IT, we know that communication is the lifeblood of every modern organisation. Whether it’s email, messaging, or document sharing, digital communication enables us to work faster and connect globally. However, these channels are also prime targets for cybercriminals seeking to intercept sensitive information or impersonate trusted identities. That’s why we take Communication Security seriously and apply comprehensive, layered protection to ensure all digital interactions remain private, authentic, and secure.

Our approach covers every aspect — from securing email infrastructures and preventing impersonation to ensuring that day-to-day communications in business messaging apps are protected against leaks and breaches.

DMARC, DKIM and SPF Monitoring

Email impersonation is a growing threat. Cybercriminals often spoof domains to trick recipients and launch phishing attacks. To combat this, we use DMARC, DKIM, and SPF technologies:

SPF ensures only authorised servers can send emails on our behalf.
DKIM adds a digital signature to prove messages haven’t been tampered with.
DMARC enforces policies and gives visibility into who sends email using our domain.

Our email authentication is monitored daily. Any irregularities trigger investigation via our Email Authentication Exception Forms and corrective actions are logged for audit and compliance.

Email Security

Email remains a primary attack vector. Whether phishing, malware, ransomware or fraud, attackers constantly target inboxes. That’s why we enforce layered Email Security to inspect and control every message.

Our approach includes:

Inbound filtering to block spam, phishing, and malware
Outbound scanning to prevent sensitive data leaks
Internal scanning to protect inside email
Attachment and link sandboxing to neutralise hidden threats

Employee vigilance is also key. Suspicious emails can be flagged using our Phishing Report Form. Incidents are logged, reviewed, and acted upon quickly to protect the organisation.

Secure Email

For highly sensitive or regulated information, email encryption and secure delivery are mandatory. Our Secure Email solution ensures that confidential messages are protected end-to-end.

Our secure email controls:

Encrypt messages using TLS and S/MIME where necessary
Enable secure portals for external recipients
Apply Data Loss Prevention (DLP) policies to block unauthorised data sharing

Policies dictate that confidential or personal data must always be encrypted before sending. Any exceptions must be approved and recorded using our Secure Email Transmission Forms.

Secure Business Messenger

Email is no longer the only channel for collaboration. Instant messaging apps have become central to how we work. However, they bring risks. Our Secure Business Messenger policy ensures that daily conversations remain confidential and compliant.

Measures include:

End-to-end encryption for all messages and files
Strict access control policies to avoid unauthorised users
Data Loss Prevention (DLP) for sensitive keywords and file types
Integration with IAM systems to align messaging access with user roles

All platforms are monitored, and misuse or breaches are recorded in our Messaging Policy Violation Register for review and remediation.

Integrated Oversight and Governance

Strong processes and documentation support our communication security efforts. Every activity, from daily email filtering to rare exceptions, is tracked through forms and reports to ensure transparency.

Key process flows include:

Email Authentication Exception Forms
Phishing Report Forms
Secure Email Transmission Forms
Messaging Policy Violation Reports

These enable us to demonstrate to auditors and stakeholders that our communication channels are actively protected and compliant.

Enabling Trusted Communication

At Checkdone IT, we believe secure communication enables business success. By protecting email, encrypting sensitive messages, and securing collaboration channels, we foster trust and enable our people to work safely and efficiently.

Whether stopping phishing attacks or protecting private discussions, our comprehensive communication security programme ensures that every message we send — and every conversation we hold — meets the highest standards for privacy and security.

Communication Security