As a Security Manager, you will need to master following:

• corporate social responsibility
• establish site security routines
• internal risk management policy
• investigate security issues
• lead disaster recovery exercises
• organisational resilience
• security regulations
• write security reports

More generally, a security manager is also versed in:

• ensure equipment availability
• ensure equipment maintenance
• establish daily priorities
• follow company standards
• handle surveillance equipment
• legal use-of-force
• liaise with managers
• maintain incident reporting records
• manage budgets
• manage disaster recovery plans
• manage logistics
• manage security equipment
• manage staff
• manage supplies
• manage the security team
• oversee planning of security systems
• plan health and safety procedures
• security threats
• strive for company growth
• supervise daily information operations

It also helps to know the following:

• advise on strengthening security
• consultation methods
• cyber security
• define security policies
• implement ICT safety policies
• information confidentiality
• maintain facility security systems
• inspect government policy compliance
• liaise with government officials
• liaise with security authorities
• manage outsourced security
• perform internal investigations
• protect important clients
• undertake employee screening