* Proficient in configuring and securing firewalls, including working with access control lists (ACLs) and understanding various firewall types.* Skilled in malware analysis, including Trojan identification, backdoor creation, and ransomware prevention.* Knowledgeable in social engineering attack methods and countermeasures, as well as data concealment techniques like steganography.* Competent in cryptography principles, penetration testing with Kali Linux.