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The most common channel of communication we use is the ordinary email, but the biggest vulnerability is to sniffing. Telegram and WhatsApp are more secure than email by default, as they include end-to-end encryption right from the start. Cloud storage is more secure, but many users are still susceptible to phishing attacks; they still give passwords to hackers. Microsoft has named Microsoft Azure a leader in the enterprise cloud solution in 2019. We'll also cover the advanced blockchain technologies that solve the problem of security in digital transfers to understand if decentralization covers the shortcomings of current solutions.