| 2FA-Two-Factor Authentication | 
            
                | 3DES-Triple Digital Encryption Standard | 
            
                | AAA-Authentication, Authorization and Accounting | 
            
                | AAR-After Action Report | 
            
                | ACL-Access Control List | 
            
                | AD-Active Directory | 
            
                | AES-Advanced Encryption Standard | 
            
                | AH-Authentication Header | 
            
                | AJAX-Asynchronous JavaScript and XML | 
            
                | ALE-Annualized Loss Expectancy | 
            
                | AP-Access Point | 
            
                | API-Application Programming Interface | 
            
                | APT-Advanced Persistent Threat | 
            
                | ARO-Annualized Rate of Occurrence | 
            
                | ARP-Address Resolution Protocol | 
            
                | ASLR-Address Space Layout Randomization | 
            
                | AUP-Acceptable Use Policy | 
            
                | AV-Antivirus | 
            
                | B2B-Business-to-Business | 
            
                | BCP-Business Continuity Planning |