Primitive Process Injection: APC Tandem cover illustration

APC Tandem: A Primitive-Chaining Process Injection That Slips Past Common EDR Triggers

A walkthrough of “APC Tandem”, a stealth Windows process-injection technique that replaces WriteProcessMemory, CreateRemoteThread and VirtualAllocEx with a chain of less-watched primitives — thread description smuggling, paired GetThreadDescription/RtlMoveMemory APCs, and a Special User APC for execution.

Computer RAM modules — the physical backing of virtual memory

Fundamentals of Virtual Memory: A Deep Dive into Paging, Page Tables, and Process Address Spaces

A structured walkthrough of how virtual memory really works on modern operating systems — from contiguous allocation and external fragmentation to paging, page tables, demand paging, stack and heap layout, mmap and copy-on-write. Based on and credited to “Fundamental of Virtual Memory” on the Melatoni blog (nghiant3223.github.io).

iOS application hardening and mobile security protection concept

Essential iOS Hardening: A Practical Guide to Defending iPhones Against Modern Spyware

A practical, security-engineering view of the essential iOS hardening steps every iPhone user — and especially high-risk targets — should apply: Lockdown Mode, Advanced Data Protection, attack-surface reduction, deep reboots, and detection with tooling like iVerify. Based on and credited to “Essential iOS Hardening Steps” by Officer’s Notes, published on Medium (Technology Hits).