William Ma

@WilliamMa

Software Developer @ Telstra Health

Sydney, AustraliaJoined May 2022

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Software Engineer based in Sydney, Australia

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William Ma's blogs

William Ma's blogwilliamma.hashnode.dev5 posts

William Ma's security blogwillsec.hashnode.dev3 posts

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Recently published

WMWilliam Mawilliamma.hashnode.devJun 9, 2025 · 2 min read

How Phishing Attacks Exploit Subdomains to Deceive Users

How Subdomains Are Used in Phishing Attacks Phishing is one of the most common cyber threats — and attackers are constantly finding new ways to make their scams look legitimate. One sneaky tactic they use is abusing subdomains to trick users into tru...

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WMWilliam Mawilliamma.hashnode.devJun 8, 2025 · 2 min read

Phishing - Still One of the Most Effective and Underrated Cyberattacks

Phishing is a type of cyberattack where an attacker tries to trick you into revealing sensitive information—like passwords, credit card numbers, or login credentials—by pretending to be a trustworthy entity, such as a bank, a service provider, or eve...

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WMWilliam Mawillsec.hashnode.devDec 5, 2024 · 2 min read

The CIA Triad

The CIA triad describes three principles involved in protecting data. Confidentiality Integrity Availability Confidentiality Confidentiality ensures only authorized individuals or systems can access the data. A few ways we can achieve confidenti...

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WMWilliam Mawillsec.hashnode.devSep 6, 2024 · 3 min read

HTB Notes: Archetype

SMB Scanning the machine we find the following services running: SMB (445) SQL Server (1433) We can list the shares or services by using the following command. smbclient -L //10.129.227.227 --user=Administator This works because the SMB server is...

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WMWilliam Mawillsec.hashnode.devSep 6, 2024 · 3 min read

HTB Notes: Funnel

FTP We begin by scanning the box with nmap. We find two ports open on the machine: 21 (ftp) and 22 (ssh) We can access the ftp server using the anonymous user account. An interesting note is we could use either the anonymous or ftp user and we co...

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William Ma

About

Available for

William Ma's blogs

Recently published

How Phishing Attacks Exploit Subdomains to Deceive Users

Phishing - Still One of the Most Effective and Underrated Cyberattacks

The CIA Triad

HTB Notes: Archetype

HTB Notes: Funnel

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William Ma

About

Available for

William Ma's blogs

Recently published

How Phishing Attacks Exploit Subdomains to Deceive Users

Phishing - Still One of the Most Effective and Underrated Cyberattacks

The CIA Triad

HTB Notes: Archetype

HTB Notes: Funnel