Most cybersecurity experts agree that by taking the following precautions, you can prevent most attacks:

Never click on links in email unless you are absolutely certain they are valid.
Do not click on links in spam emails. Not all spam emails look like spam. Hackers can "spoof" email addresses fairly easily. If an email message or format does not seem quite right, or your inner "alarm" is going off, instead of clicking, hover your mouse over the link and if the address that displays is one that you are not familiar with, do not click on it. If you are not sure that the link is valid, contact the sender by sending a separate email (do not forward the potential spam) and asking whether they were the source of the email. Clicking on these forms of malicious links is the number one way computers get infected, not only with ransomware, but also all forms of viruses.
Do not open untrusted email attachments. Do not click on attachments to email unless you are certain that the email came from a source you know and trust. If you are not sure that the attachment is safe, contact the sender by sending a separate email (do not forward the potential spam) and asking whether they were the source of the email.
Only download files from websites you trust.
Do not give out personal information if you receive an email from an unknown or untrusted source. Similarly, do not give out this information in response to a text or phone call.
Keep your software up to date.

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Cyberattacks can happen anytime, anywhere—How you react is the key