One of the biggest issues with legacy systems is the lack of .

One of the compatibility issues with new ICT systems is conflicts.

An issue with legacy systems is the potential for system due to technical problems.

One challenge of working with legacy systems is the limited from vendors.

The use of file formats can lead to compatibility issues.

An issue with legacy systems is the high cost of maintenance and .

Legacy systems may not meet the standards required by current regulations.

Legacy systems can lead to decreased and efficiency.