<p>NEVER “settle” for a safe major. You are just asking for 1) a low GPA 2) a bad college experience 3) a mind-numbingly boring job (even if it pays well).</p>
<p>If you really like pure math, then major in it. There are plenty of jobs you can get.
You can get jobs in finance, academia, and management consulting.
If you want to expand your career options, taking 3-4 core CS or core engineering classes (or getting a minor in those fields) will open you up to jobs in computer software or engineering, respectively.</p>