By 2015 the Millennial Generation will dominate the workforce, according to the U.S. Bureau of Labor Statistics. Along with them, Millennials will bring their own devices to the workplace—and a lax attitude toward device security.

This can be catastrophic for the enterprise, with key trade secrets and strategy walking out the door every day without adequate protection against device loss or theft.

While IT departments could largely protect corporate data with company-issued devices that were security-approved and hardened against data leakage, that’s not the case with bring-your-own-device (BYOD).

“BYOD is a result of a generation that grew up with technology coming into the workforce,” said Andreas Baumhof, chief technology officer for ThreatMetrix, in a recent statement on the topic of enterprise security. “This is a culture clash for many enterprises. BYOD is the first step towards a fully integrated approach of employees and enterprises working together for the benefit of both – in the most productive way possible.”

The old model of securing corporate data must give way to a new paradigm if Millennials and their BYOD preference are the new norm.

Four keys to securing enterprises in the face of the BYOD trend include better logins, identifying important transactions, data discrimination and use of a good mobile device management (MDM) solution.

When it comes to logins, make sure that there are secure login systems across all devices. Don’t sacrifice security for mobile login convenience.

Identify high risk transactions and put into place technologies that can identify these transactions across multiple applications with different security requirements.

A third element is designing policies about which employees can access which data and in which situations. Then implement technologies that can help by watching each login and transaction automatically.

Finally, use a good MDM solution that offers advanced features allowing you to elect MDM services and configure device enrollment settings.

The Millennials are here to stay. But that doesn’t necessarily mean that the enterprise must get less secure. Policies and technology just need to shift to accommodate the change in philosophy.