Security Audits

Network Security: Protecting Data in Transit and at Rest Data protection has two faces: data in transit and data at rest. In transit, information moves between devices, apps, and services. In rest, it stays on disks, in databases, or in backups. Both directions matter for privacy and trust. A few clear steps can keep work and personal data safer. Data in transit is exposed when information travels over networks. The main defense is encryption and trusted paths. Use HTTPS with TLS 1.3 for websites and APIs. This hides what is sent and proves who you are talking to. Enable forward secrecy so each session uses new keys, limiting what a stolen key could reveal later. Keep certificates current, and consider HSTS to tell browsers to always use secure connections. For remote work, VPNs or encrypted tunnels add a second shield on public networks. ...

Blockchain Beyond Bitcoin: Smart Contracts in Practice Smart contracts are self-executing agreements written as code and stored on a blockchain. They automate trust by encoding rules that run when conditions are met. Once deployed, they form a transparent, verifiable, and immutable foundation for agreements between parties who may not fully know or trust each other. Escrow in online markets is a common first use. A buyer deposits funds into the contract, the seller ships the product, and after verification or a timeout, the contract releases payment. The process is clear, and disputes are less likely because outcomes are defined by code rather than by memory or mood. ...

IoT Security: Protecting Connected Devices Smart devices bring convenience, but they also open more doors for attackers. A single insecure device can give access to your home network and personal data. The good news is that a few practical steps can greatly improve safety without much effort. Understanding the risk Many threats come from simple oversights: weak or default passwords, outdated software, and insecure connections. IoT devices often send data to cloud services, which can be exposed if the device isn’t updated or properly configured. Attackers may scan networks for unpatched devices or try common credentials. Being aware of these risks helps you act. ...