Cybersecurity

Was at a talk where they discussed how the lights in Ukraine were turned off - when hackers got into their systems through 'phishing emails' - spam emails that were inadvertently clicked but which installed malicious software and brought the grid down: https://www.reuters.com/article/us-ukraine-cyber-attack-energy/ukraines-power-outage-was-a-cyber-attack-ukrenergo-idUSKBN1521BA

The speaker warned us about how not to click on emails and open documents/attachments when we are unsure of the sender.