Explore: Security Expert

was an appointee who served in the United States Department of Homeland Security (DHS) from 2017 to 2019, including as chief of staff of the DHS. He was

provide security (security company, security police, security forces, security service, security agency, security guard, cyber security systems, security cameras

security (also cybersecurity, digital security, or information technology (IT) security) is a subdiscipline within the field of information security.

Chris Wysopal (also known as Weld Pond) is an entrepreneur, computer security expert and co-founder and CTO of Veracode. He was a member of the high-profile

American hacker, computer and internet security expert who founded the Black Hat and DEF CON computer security conferences. Moss received his first computer

Joe Sullivan (born in 1968) is an American Internet security expert and convicted felon who has worked in both government and private sectors. Having

Felix von Leitner (* 1973), nicknamed Fefe, is a German IT security expert living in Berlin. He is the main author of the dietlibc, a C standard library

Michael Demon Calce (born 1984, also known as Mafiaboy) is a security expert and former computer hacker from Île Bizard, Quebec, who launched a series

2019. He is a public speaker and security expert who lectures internationally about espionage and national security, cybersecurity, fraud, corporate diligence

Retrieved 21 May 2011. Fred Burton is one of the world's foremost experts on security, terrorists, and terrorist organizations. He is vice president of