Security Questions

I have a few questions regarding security:

1) Is your security posture based on a security standard (i.e.,ISO27001, PCI DSS, etc.)?
2) Do you have a security assessment performed?
3) Do you have SOCs available for viewing?
4) Method used to secure the Company’s data from being accessed by other customers/third parties?
5) Do you have Service Level Agreement (SLA) available for viewing?


If you can point me to any documents that you may have regarding these questions it would be very helpful.

Thank you.