Answer:
Open source software
Explanation:
Open source software is exactly what you think it is, the code to compile the software and run it is available to the public for use or modification.
Answer:
Public key encryption
Explanation:
DescriptionPublic-key cryptography, or asymmetric cryptography, is a cryptographic system that uses pairs of keys: public keys which may be disseminated widely, and private keys which are known only to the owner.
Attackers will initially attempt to find an IP address within the network that can be used to stage an attack. Hope this helps!