malware
2 articles with this tag
Coincheck NEM Heist (2018) — How ~$530M Was Stolen, and the Key-Management Defense
The entry point was reported to be spear-phishing / malware aimed at employees, which stole the private key of an internet-connected hot wallet; ~523 million XEM (~$530M at the time) was then moved out in one sweep. The core failure was keeping a huge, instantly-spendable balance 'hot' and with no multisig — a single stolen key moved almost everything. Defend by keeping important keys cold / in a dedicated vault, minimizing the hot balance, removing single points of failure (multi-approval), and detecting and stopping abnormal bulk operations.
What is malware? Types, infection routes, and the basic defenses
Malware (malicious software) is the umbrella term for software built to harm your devices or data. Viruses, worms, trojans, ransomware, spyware, and bots are all types under it. However different they look, the defense is the same three layers: close the entry (updates, don't open suspicious attachments/macros, MFA), detect (EDR, antivirus), and be able to recover (backups). Mastering the principle matters far more than memorizing the type names.