Italian police have uncovered a major international computer-hacking operation that compromised private communications at the Vatican. Police in Rome announced the arrest of two engineers who are suspected of illicitly obtaining “information relative to state security.” The hackers, who were not identified, were described as London residents in their 40s. They had reportedly gained access to computer servers operated by Italian government leaders and European banking officials. The operation also penetrated the Vatican, police reported. Hackers gained access to computers used by Cardinal Gianfranco Ravasi, at the Pontifical Council for Culture. They also hacked into computers at a Vatican guest...