Christopher Rees

Senior IT Leader | AI & Cybersecurity | Cybersecurity Author @Pluralsight |

[Christopher Rees @cdrees]

Most Security+ cryptography questions are one question in disguise: which job is being done? Confidentiality, integrity, authenticity and non-repudiation each have their own tool.… https://t.co/LX5WR5fp8c #Cryptography #SymmetricEncryption #AsymmetricEncryption #Hashing #Salting

[Christopher Rees @cdrees]

Check out AI Security Brief: Agentic Attack Breaches Chainalysis, Claude Code Extension Backdoored from Skillthropic on Amazon Music. https://t.co/SNBjrNJ6tj

[Christopher Rees @cdrees]

@ATLairport anyone know what was up with the emergency announcement that went out over the loudspeaker? At about 1:15 PM today? My kids are there and not sure what it was about.

[Christopher Rees @cdrees]

@Jack_of_Hearrts I think that’s Jimmy Carr in disguise

[Christopher Rees @cdrees]

CompTIA SecAI+ (CY0-001) is CompTIA's new certification for securing AI. Here's what it covers, who it's for, the exam format, and how to start preparing. https://t.co/jNen6YzAUC #CompTIASecAI #AISecurity #Certification #Cybersecurity #CompTIA

[Christopher Rees @cdrees]

It's really to imagine how crappy the @amazon alexa app is.. the UI is just terrrible, not user friendly, trying to organize things in a smart home with lots of devices is incredibly cumbersome. Your app should be a flagship of UI/UX... #amazon #alexa #AppDesignFail

[Christopher Rees @cdrees]

“Meta’s Muse just stole the AI spotlight from OpenAI and Anthropic” https://t.co/BHcp42z1JB

Would use it (and trust your data)? Early days...

via The AI Security Brief by Skillthropic — https://t.co/RdFfFv4c3g

[Christopher Rees @cdrees]

The most expensive vulnerability report is the one that scanned the wrong way. CySA+ objectives 2.1 and 2.2: internal versus external, credentialed versus non-credentialed and why… https://t.co/40sEpUDv9H #CySA #CS0004 #VulnerabilityScanning #Nmap #CredentialedScan

[Christopher Rees @cdrees]

@amritwt He needs a bigger shirt.. :)

[Christopher Rees @cdrees]

Deleted data is not gone, and the CISSP asks about the difference in a dozen ways. Domain 2 on what happens after the useful life of data and the assets that hold it: remanence an… https://t.co/hKV74vgtqR #CISSP #AssetSecurity #DataSanitization #DataRemanence #EndOfLife

[Christopher Rees @cdrees]

Objective 2.4 is the longest list in Security+ and the one that turns into the most scenario questions. Malware classified by how it spreads and what it does, the attack families… https://t.co/RoAWR635Mj #Malware #IndicatorsOfCompromise #Ransomware #Rootkit #CompTIASecurity

[Christopher Rees @cdrees]

A cloud provider will not let you audit its data center, so it hands you a stack of reports instead. CCSP Domain 1 tests whether you can read them: SOC 1, 2 and 3 and why Type II… https://t.co/yHFrMO3NSS #CCSP #SOC2 #ISO27017 #CSASTAR #FIPS1403

[Christopher Rees @cdrees]

CompTIA's draft SY0-801 objectives are out, the exam is expected to open this autumn, and SY0-701 retires on June 11, 2027. Built from the two objectives documents themselves: the… https://t.co/AHoLwfRHRC #CompTIASecurity #SY0701 #SY0801 #ExamPrep #ExamObjectives

[Christopher Rees @cdrees]

I read The AI Security Brief by Skillthropic — daily AI news, AI security, and the C-suite view in one email. https://t.co/RdFfFv3EdI

[Christopher Rees @cdrees]

@Bulvarpress Had the McLaren driver ever actually driven a McLaren before? :)

[Christopher Rees @cdrees]

@soboozie Looks pretty well lit... nothing like a little hyperbole and fear mongering to get some clicks. Automation is coming - at scale - quickly, for sure. But let's keep it in real....

[Christopher Rees @cdrees]

Threat modeling questions on the CISSP are not about drawing diagrams. They are about knowing which method answers which question. STRIDE and the security property each letter att… https://t.co/glVAOg8Ing #CISSP #ThreatModeling #STRIDE #PASTA #DREAD

[Christopher Rees @cdrees]

A sharing group sends a report with no hash to block and no signature to deploy, only a description of how the adversary works. Turning that into detection is CySA+ objective 1.4.… https://t.co/28lCcO4oj9 #CySA #CS0004 #ThreatIntelligence #ThreatHunting #PyramidOfPain

[Christopher Rees @cdrees]

Interactive MITRE ATT&CK matrix guide, fully explorable, with tactic walkthroughs and drills to test your knowledge. https://t.co/wRwm6FbSRm #mitre #cybersecurity #skillthropic #security+ #cysa #cissp

[Christopher Rees @cdrees]

Every Security+ exam opens with the same trap: a control described in a sentence, and four answers that are all real words. Objective 1.1 as a grid: the four categories that say w… https://t.co/GK8ch7Buz7 #SecurityControls #ControlCategories #ControlTypes #CompTIASecurity #SY0701