Features > Prevent

Security alerts

Stop sensitive data escaping unsecured

security alert

Strengthen your outbound email security with 'before-you-send' security alerts.

The tool acts as a safeguard by identifying sensitive content in emails and reminding users to secure them before sending.

Automatic detection

When a user attempts to send an unsecured email from Outlook containing predefined sensitive words in the subject line or body, Mailock intervenes.

It alerts the user to the presence of these words and prompts them to secure the message, to prevent sensitive information from being unintentionally exposed.

Customisation

Administrators have the ability to create and manage customised lists of trigger words, tailored to their organisation’s unique requirements.

This flexibility ensures you can define what constitutes sensitive information, in line with your business context and data protection standards.

Enhanced controls

Trigger word detection is enabled by default to maintain security and can’t be turned off by individual users.

However, administrators can adjust this setting if greater flexibility is needed, giving you control over your organisation’s security protocols.

Business team looking at laptop and smiling around board table

Plans & pricing

Compare plans

Take a look at our plans to find the right one for your challenges.

Content Hub

Related media

6 min read
Colleagues reviewing security analytics in office together
Cybersecurity
27 08 25

Human Error, Email, and the New Era of Cybersecurity

Human error is the top cause of email breaches. Learn how human risk management and tools like Mailock reduce risk and ensure compliance.

5 min read
Charlotte Hooper Head of Operations The Cyber Helpline
Podcast
26 08 25

Your Customer’s Worst Day: How to Be Ready When Cybercrime Hits

Learn how to support customers during cybercrime crises with empathy, clarity, and practical measures to build trust and prevent further harm.

9 min read
Professional using her smartphone for secure messaging
Cybersecurity
24 07 25

Secure Messaging Showdown: Comparing Tools for Private Digital Comms

Compare secure messaging and email tools for privacy, identity checks, and compliance. Discover the best option for your needs - from Mailock to Signal.