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 Derrick Johnson
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Profile of Derrick Johnson

National Practice Director for Secure Infrastructure Services at AT&T Cybersecurity Consulting
Member Since: 7/1/2019
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News & Commentary Posts: 1
Comments: 0

Derrick Johnson is the National Practice Director for Secure Infrastructure Services within AT&T Cybersecurity Consulting, responsible for its direction and overall business performance. Derrick's practice provides strategic and tactical cybersecurity consulting services around next-generation network and cloud security architectures, zero trust networking, logical and virtual network segmentation and micro-segmentation, security operations, orchestration and automation, and firewalling, among other initiatives. Derrick is a CISSP with 23 years' experience who joined the AT&T Cybersecurity Consulting team through the acquisition of the VeriSign's Global Security Consulting business.  Prior to VeriSign, Derrick was the Global Information Security Officer for Stream International, and a Senior Associate on KPMG's Information Risk Management team. Before becoming a consultant, Derrick spent four years in systems and network engineering, with a role as a Senior Network Engineer with America OnLine's Advanced Network & Services (ANS) team. Derrick holds a bachelor's degree in computer engineering from Syracuse University.

Articles by Derrick Johnson
News
Inside the Ransomware Campaigns Targeting Exchange Servers
Kelly Sheridan, Staff Editor, Dark Reading,  4/2/2021
Commentary
Beyond MITRE ATT&CK: The Case for a New Cyber Kill Chain
Rik Turner, Principal Analyst, Infrastructure Solutions, Omdia,  3/30/2021
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Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-30480
PUBLISHED: 2021-04-09
Zoom Chat through 2021-04-09 on Windows and macOS allows certain remote authenticated attackers to execute arbitrary code without user interaction. An attacker must be within the same organization, or an external party who has been accepted as a contact. NOTE: this is specific to the Zoom Chat softw...
CVE-2021-21194
PUBLISHED: 2021-04-09
Use after free in screen sharing in Google Chrome prior to 89.0.4389.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21195
PUBLISHED: 2021-04-09
Use after free in V8 in Google Chrome prior to 89.0.4389.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21196
PUBLISHED: 2021-04-09
Heap buffer overflow in TabStrip in Google Chrome on Windows prior to 89.0.4389.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21197
PUBLISHED: 2021-04-09
Heap buffer overflow in TabStrip in Google Chrome prior to 89.0.4389.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.