Cybersecurity experts are reviewing the resignation of Jen Easterly, Director of the Cybersecurity and Infrastructure Security Agency, and its potential impact on national cybersecurity efforts.

Hackers are using PDFs to impersonate big brands like Microsoft and PayPal in a new threat campaign
Summarize this content to a maximum of 60 words: Hackers are increasingly using PDF attachments to impersonate major brands in phishing campaigns, according to new