Marketing operations have quietly become one of the most data-rich and vulnerable functions in a business.

Did you know that:

  • The Identity Theft Resource Center (ITRC) reports 1,732 publicly disclosed data breaches in the first half of 2025 – up about 5% over the same period in 2024. Help Net Security
  • For the U.S., one widely-cited stat says that 9% of publicly traded companies issued a data breach in 2023, but there’s not similar figure published for 2025 yet. Secureframe

Between CRMs, automation platforms, analytics dashboards, and customer databases, marketing teams handle a massive amount of sensitive data every day. Yet, many ops teams still rely on default settings and “good faith” when it comes to security.

In 2026, that’s not enough.

Here are five best practices every marketing ops team should prioritize this year to protect their systems and data:

1. Tighten Access Control

Start with the basics: who has access to what?

Over time, it’s common for users to accumulate unnecessary permissions, especially as roles shift or new tools are added. Every additional account or integration is a potential entry point for a breach.

Regularly audit user permissions and remove anyone who no longer needs access.This can sometimes be forgotten, so it’s important to keep this top of mind.  A smaller, well-managed user base is far easier to protect.

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2. Follow the Principle of Least Privilege

“Least privilege” means every user only has the minimum level of access required to do their job.

For example, someone running reports doesn’t need admin access to modify automation workflows. Limiting privileges helps contain potential damage if credentials are ever compromised.

3. Require Two-Factor Authentication (2FA)

This one’s simple and underused.

Two-factor authentication adds a layer of protection beyond passwords by requiring a second form of verification, like a text code or authentication app.

It’s one of the easiest ways to stop unauthorized logins and protect accounts, even if passwords are leaked.

4. Keep and Review Audit Logs

Audit logs are your early warning system.

They record who accessed what and when, helping teams spot unusual activity quickly. Whether it’s an unexpected login, a new integration, or a permissions change, reviewing logs regularly can help you catch issues before they escalate.

Most major platforms (like HubSpot, Salesforce, and Marketo) include audit logging tools  but many teams never check them. And this is how things can get vulnerable. Make it part of your monthly ops routine.

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5. Review Vendor Security Regularly

Your martech stack is only as strong as its weakest integration.

Every time you add a new vendor or plug-in, you’re trusting another company with your data. Review their security policies, compliance certifications, and incident response procedures.

And don’t do it once, schedule vendor security reviews at least annually to make sure your partners are keeping up with evolving threats.

Building Smarter, Safer Marketing Systems

Security isn’t just an IT checklist, it’s a marketing ops responsibility.

The more your team automates, integrates, and personalizes, the more data you’re responsible for. By tightening access, enforcing safeguards, and holding vendors accountable, you can protect your stack and your brand’s reputation.

At Marquee Project, we help companies strengthen their marketing operations by integrating AI solutions and scaling workflows. Our services help teams monitor system health, flag anomalies, and ensure data integrity, all without slowing down operations. This is due to real marketing innovations only working when the foundation is safe.  

In 2026, the most advanced marketing teams won’t just be the most creative. They’ll be the most secure.