Concept:Electronic data processing offers many benefits, but it also carries certain risks that count as disadvantages.
Explanation:Handling complex computation, providing effective storage, and processing data at a phenomenal speed are all advantages of electronic data processing.
However, vulnerability to attack is a known drawback because such systems can be affected by hacking, viruses, or unauthorized access.
Therefore, among the given choices, the correct disadvantage is vulnerability to attack.
Answer:D. vulnerability to attack