Final answer:
An example of a deficiency in the legacy environment could include outdated hardware, lack of security measures, and incompatible software.
Step-by-step explanation:
An example of a deficiency in the legacy environment could be all of the above options: outdated hardware, lack of security measures, and incompatible software.
Outdated hardware refers to using old or outdated computer equipment, which can result in slower performance and the inability to run modern software.
Lack of security measures in the legacy environment means that the system may be vulnerable to cyberattacks and data breaches, risking the confidentiality and integrity of information.
Incompatible software means that the legacy system cannot properly run or integrate with newer software and applications, limiting its functionality and hindering productivity.