APA (7th ed.) Citation

JACOBI, J. L. (2012). Your Data, Safely in Your Pocket. PCWorld, 30(7), 40.

Chicago Style (17th ed.) Citation

JACOBI, JON L. "Your Data, Safely in Your Pocket." PCWorld 30, no. 7 (2012): 40.

MLA (9th ed.) Citation

JACOBI, JON L. "Your Data, Safely in Your Pocket." PCWorld, vol. 30, no. 7, 2012, p. 40.