What a single email can cost your organization in 2025, and how to stop it before it’s too late

One click.

That’s all it takes.

One employee opens a realistic-looking email, clicks a link, enters credentials, or downloads an invoice.

Within hours (sometimes minutes) your organization is facing millions in losses, weeks of downtime, and permanent reputational damage.

This isn’t a hypothetical. It’s happening every day.

The Real-World Price of “Just One Click”

93% of these incidents still start with email.

And the average cost of a corporate email compromise in 2025? $8.7 million and rising.

The fallout goes far beyond the ransom or wire transfer:

• Regulatory fines (GDPR, SEC, HIPAA)

• Class-action lawsuits

• Lost contracts and customers

• Executive resignations

• Stock price drops that never fully recover

One click can bankrupt a mid-sized company.

Why Traditional Defenses Aren’t Stopping the Bleeding

Most organizations still rely on legacy Secure Email Gateways and basic awareness training.

They catch bulk spam and known malware — but they are completely blind to:

• Business Email Compromise (BEC) with zero links or attachments

• Credential phishing on legitimate domains

• Account takeover via stolen sessions

• Supply-chain attacks from trusted vendors

Attackers know this. That’s why BEC alone surged 42% in 2024–2025 and now averages over $120,000 per incident.

Break the Chain Early: The New Email Security Standard

The only way to stop tomorrow’s incidents is to assume some attacks will always land in the inbox — and build defenses that stop the follow-on damage.

Here are two proven platforms that break the attack chain long before “one click” becomes a crisis.

Mimecast – The All-in-One Cyber Resilience Platform for Email

Mimecast protects over 40,000 organizations with human-centric, cloud-native email and web security that goes far beyond the gateway.

Key capabilities that stop the incident before it starts:

• Targeted Threat Protection: AI-powered detection of impersonation, malicious URLs, and attachment sandboxing

• DMARC Analyzer & Enforcement: Stops domain spoofing and supplier impersonation cold

• Cyber Resilience Extensions: Instant email continuity even during ransomware outages

• Web Security: Blocks malicious sites the moment a user clicks — before credentials are entered

• Awareness Training built-in: Turns employees from victims into the last line of defense

Mimecast doesn’t just block known bad. It stops the sophisticated, zero-payload attacks that cost millions.

PreVeil – End-to-End Encryption So Simple Even Your CEO Will Use It

PreVeil makes military-grade encryption effortless for everyday email and file sharing — with zero trust built in from day one.

• End-to-end encryption by default: Even if credentials are stolen, attackers get nothing readable — not even PreVeil can see your data

• No passwords to phish: Uses Apple/Google/KeyPass-style key management

• Secure file sharing replaces risky attachments and shared drives

• Works seamlessly with Outlook and Gmail — no training required

• Compliant with CMMC, HIPAA, ITAR, and FedRAMP

When prevention fails, PreVeil ensures stolen credentials or intercepted emails are completely useless to attackers.

The Bottom line in 2025

You will never train or block your way to perfect prevention.

The winners now combine best-in-class detection (Mimecast) with unbreakable encryption (PreVeil) so that even when someone clicks, the incident dies in the inbox.

Because in 2025, the real cost of a click isn’t measured in seconds — it’s measured in millions, reputations, and sometimes the survival of the business itself.

Don’t be the next headline.

Explore Mimecast and PreVeil today — and make sure the next click in your organization is just… a click.