Nikesh Arora, CEO of Palo Alto Networks, looks on during the closing bell at the Nasdaq Market in New York City on March 25, 2025.Jeenah Moon | ReutersPalo Alto Networks reported better-than-expected quarterly results and issued upbeat guidance for the current period. The cybersecurity software vendor said Nir Zuk, who founded the company in 2005, is retiring from his role as chief technology officer.The stock rose about 5% in extended trading.Here's how the company did compared to LSEG estimate...