निम्नलिखित में से कौन किसी सूचना प्रणाली के लिए संभावित सुरक्षा खतरे का प्रतिनिधित्व करता है?

Which of the following is considered 'Malware'?

'Phishing' is best described as a type of:

What is the primary role of a digital signature in secure electronic communication?