According to i.MX6 UltraLite ordering information, some parts offer Standard Security, Enhanced Security or both.
From the "i.MX6 and i.MX 7 Series Comparison Table" Security Features (https://www.nxp.com/docs/en/brochure/FLYRIMXPRDCMPR.pdf) , which features below are "Standard" and which are "Enhanced"?
1. Secure Boot
3. Tamper Detection
4. Secure Storage (including 32 KB Secure RAM)
5. Cryptographic Accelerators (AES-128, DES 3DES, ARC4, MD5, SHA-1, SHA-224, SHA-256, RSA/ECDSA)
6. Secure Debug,
7. OTP Space
the following helps: