Michael Hacker – Hacker Security

An Introduction to Open Source Intelligence (OSINT)

By Michael Hacker 03/04/2024Cyber Threat, HUMINT, intelligence, musings, OSINT, SIGINT

Welcome to the fascinating—and occasionally terrifying—world of Open Source INTelligence (OSINT), an essential element in every cybersecurity toolkit. Whether you're a cybersecurity aspirant, simply curious about intelligence collection and analysis…

PayPal Scam Alert

By Michael Hacker 11/08/2022scamsNo Comments

Early this morning, as I was going about my usual morning routine, I received an email from service@paypal.com indicating that I had an outstanding payment due. Being the untrusting sort…

On Cybersecurity Education

By Michael Hacker 11/09/2020musingsNo Comments

Preface: If you are already thinking, "Finally! Someone has the answers to all our cybersecurity education woes!" you might as well stop reading now. I'm basically just here to complain…

Common Network Ports

By Michael Hacker 10/30/2020NetworkNo Comments

PortUsageTransport Protocol20FTP Data TransferTCP21FTP Command ControlTCP22SSHTCP/UDP23TelnetTCP25SMTPTCP50, 51IPSec53DNSTCP/UDP67, 68DHCPUDP69TFTPUDP80HTTPTCP110POP3TCP119NNTPTCP123NTPUDP135-139NetBIOSTCP/UDP143IMAPTCP/UDP161, 162SNMPTCP/UDP194IRC389LDAPTCP/UDP443HTTPSTCP/UDP989, 990FTP over SSL/TLSTCP3389RDPTCP/UDP

Cyber Attacks

By Michael Hacker 10/29/2020musingsNo Comments

Cyber attacks take various forms—depending on their intended outcome—that can range from preventing someone from legitimately accessing a system to futzing with data that you shouldn't have access to. Let's…

What is Security?

By Michael Hacker 10/23/2020musingsNo Comments

Since I'm writing about security on a website with the word "security" in the domain name, I should probably start off by defining my terms, eh? Most definitions of the…