Centered on user data security and privacy, we conduct research and open our tech capabilities to developers, building an information‑security fortress for partners and users and safeguarding OPPO device security.
This article explores advanced Linux kernel hooking techniques—including kprobe, jprobe, kretprobe, and livepatch—alongside lock mechanisms and atomic operations, providing code examples and practical guidance for safe and effective kernel instrumentation.
This article examines the security challenges of Android and IoT devices built on ARM/ARM64 platforms, explains how Google's Generic Kernel Image (GKI) restricts kernel modifications, and provides detailed techniques—including memory‑page attribute manipulation, remap_pfn_range, and assembly‑level hook implementations—to safely inject custom functionality into the kernel while addressing write‑protection, concurrency, and module‑unloading issues.
This article explains the fundamentals of web security, outlines typical web architecture, classifies penetration testing approaches, enumerates common vulnerabilities such as SQL injection, XSS, file upload and deserialization, and discusses how attackers combine these flaws to launch advanced exploits.
