Adila is writing an informative essay on effective methods for increasing cybersecurity on the internet. One of the main ideas that she wants to convey in her essay is the different types of cyberattacks that cybersecurity combats on the internet.

The main idea should identify a specific type of cyberattack that cybersecurity combats. Malware is invasive, harmful software, so choice B directly names a threat that cybersecurity protects against. The other choices discuss cybersecurity broadly or its importance, rather than giving an example of a cyberattack.

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