Email may be vital to the modern working world, but it's also a major target for hackers. Now, as part of Cybersecurity Awareness Month, the National Institute of Standards and Technology is aiming to help better secure it. NIST recently published a draft guidance on better email security, which is now available for comment. Curt Barker is a guest researcher at NIST, specializing in cybersecurity. Federal Drive host Tom Temin asks him if it's fair to say phishing attacks are the main way hackers get into corporate and federal networks.