Sjoerd Olsthoor...
Level8
93% (9843/10500)




ImageEssential Specialties
0%

ImageSecurity Specialist
0%

ImageWeb Security Specialist
0%

ImageServer Security Specialist
0%

ImageForensic Specialist
0%

ImageAware Administrator
0%

ImageAware Programmer
0%

Profile of CS-28031828658

https://www.certifiedsecure.com/profile?alias=Sjoerd Olsthoorn

You are viewing the profile of Sjoerd Olsthoorn


ImageInternet Fundamentals
100%

ImageDon't click
100%

ImageInternet FundamentalsInstruction Video
ImagePhishing FundamentalsInstruction Video
ImageUpdate FundamentalsInstruction Video
ImageMalware InfectionInstruction Video
ImageSafe InternetExtra Content (0%)
ImageSafe Internet Challenge
0%

ImageICTRecht Challenge 2020
0%

ImageMobile Awareness
0%

ImageMalware Memory
0%

ImageSSL/TLS Quiz
0%

ImageSecurity.NL Challenge
0%

ImageSecurity.NL Winter Challenge
0%



ImageDon't click Plus
100%

ImagePassword Fundamentals
100%

ImagePassword FundamentalsInstruction Video
ImagePhishing FundamentalsInstruction Video
ImageMalware InfectionInstruction Video
ImageSafe Internet PlusExtra Content (0%)
ImagePassword Quiz
0%

ImageSecure Banking Quiz
0%

ImagePassphrase Pinata
0%



ImageI Know What You Mean
100%

ImageiDB Challenge
100%

ImageWeb FundamentalsInstruction Video
ImageFilesystem EssentialsInstruction Video
ImageInstruction Path TraversalInstruction Video
ImageDatabase EssentialsInstruction Video
ImageInstruction SQL InjectionInstruction Video
ImageSQL PlaygroundExtra Content Tool
ImageEssential SecurityExtra Content (40%)
ImageHerman Flight Security
100%

ImageComedy and Tragedy
100%

ImageSecurity Shop
100%

ImageTreasure Challenge (V2)
100%

ImageICTRecht Challenge 2020
0%

ImageAcronym Alex
0%

ImageCountry Claire
0%

ImageHackblog Challenge
0%

ImageSecurity Trivia
0%

ImageConspiracy Quiz
0%


ImageEssential SpecialtiesCertificate (0%)
ImageCTF Challenge
0%

ImageBoris Challenge
0%

ImageDistelcorp Challenge
0%

ImageInstruction Path TraversalInstruction Video
ImageInstruction SQL InjectionInstruction Video
ImageSQL PlaygroundExtra Content Tool
ImageEssential SpecialtiesExtra Content (30%)
ImageComedy and Tragedy
100%

ImageTreasure Challenge (V2)
100%

ImageGertner Challenge
100%

ImageMinobet Part 1
100%

ImageMinobet Part 2
0%

ImageMinobet Part 3
0%

ImagePoréus Traffic Track
0%

ImageTempus
0%

ImageHidden Message
0%

ImageScore a Shell
0%

ImageBinary Mastery: Ensign
0%

ImageBinary Mastery: Lieutenant
0%

ImagePanic Picnic
0%


ImageSecurity SpecialistCertificate (0%)
ImageConnect The Packets
0%

ImageDate My Ports
0%

ImageName That Vulnerability
0%

ImageSecurity FundamentalsInstruction Video
ImageInstruction Port ScanningInstruction Video
ImageInstruction XSSInstruction Video
ImageSQL PlaygroundExtra Content Tool
ImageStorage ToolExtra Content Tool
ImageHTML ToolExtra Content Tool
ImageURL ToolExtra Content Tool
ImageSecurity SpecialistExtra Content (0%)
ImageP2000 Challenge
0%

ImageSmart Home
0%

ImageFind My Ports
0%

ImagePoemshare
0%

ImageMy Password (V2)
0%

ImageBreakfast Club
0%

ImageSecret Spy
0%

ImageVersion Madness
0%


ImageWeb Security SpecialistCertificate (0%)
ImageVan Zant Bank & Finance
0%

ImageBasic Web Security
0%

ImageInstruction XSRFInstruction Video
ImageWeb InsecurityInstruction Video
ImageHTML ToolExtra Content Tool
ImageWeb Security SpecialistExtra Content (0%)
ImageAvatar Challenge (V2)
0%

ImageHonest Achmed
0%

ImageTetris Challenge
0%

ImagePaste Challenge
0%

ImageTrace
0%

ImageBachelor
0%

ImagePrivate Messenger
0%

ImageTMI Photoshare
0%

ImageChess Challenge
0%


ImageServer Security SpecialistCertificate (0%)
ImageShell4All
0%

ImageBasic Server Security
0%

ImageUDP Port ScanningInstruction Video
ImageServer InsecurityInstruction Video
ImageServer Security SpecialistExtra Content (0%)
ImageFind My UDP Ports
0%

ImageFasttrack Challenge
0%

ImageGuess My Password
0%

ImageOpen Relay
0%

ImageAnonymous FTP
0%


ImageForensic SpecialistCertificate (0%)
ImageCosmo Challenge
0%

ImageKnow your Forensics
0%

ImageCapturing Network TrafficInstruction Video
ImageAnalyzing Network TrafficInstruction Video
ImageCopying Hard DisksInstruction Video
ImageAnalyzing Hard DisksInstruction Video
ImageIP InformatieInstruction Video
ImageForensic SpecialistExtra Content (0%)
ImageNetwork Analysis
0%

ImageSecurity Shop Analysis
0%

ImageWho owns that IP?
0%

ImageFind that hash
0%


ImageAware AdministratorCertificate (0%)
ImageBuild that Firewall
0%

ImageServer Security Quiz
0%

ImageInstruction FirewallingInstruction Video
ImageInstruction UpdatesInstruction Video
ImageCVE DetailsInstruction Video
ImageAware AdministratorExtra Content (0%)
ImageWhat rule to use?
0%

ImageRule that order
0%

ImageFirewall Basics
0%

ImageFirewall Advanced
0%


ImageAware ProgrammerCertificate (0%)
ImageWhat's up?
0%

ImageApplication Security Quiz
0%

ImageInstruction Input ValidationInstruction Video
ImageUser Input ExamplesInstruction Video
ImageInstruction AuthenticatieInstruction Video
ImageAware ProgrammerExtra Content (0%)
ImageNo More Path Traversal
0%

ImageNo More SQL Injection
0%

ImageNo More XSS
0%

ImageVault Challenge
0%

ImageBug Hunt
0%