Nearly everyone’s smartphone is vulnerable, though most ordinary smartphone users are unlikely to be targeted in this way. Aside from criminal suspects and terrorists, those most likely to be surveillance targets include journalists, human rights workers, politicians, diplomats, government officials, business leaders, and relatives and associates of prominent people. Specially designed — and very expensive — phones using varieties of the Android operating system along with advanced security measures may resist attack by spyware, but there’s no way to know for sure.

Are there any rules to protect me? – Spotlight on Israeli based Pegasus Spyware software

There is little meaningful legal protection against being targeted by spyware in most of the world. NSO says Pegasus cannot be used on numbers inside the United States, Israel’s most important ally. The United States has some legal restrictions on spyware, including the federal Computer Fraud and Abuse Act, which was enacted in 1986 and bans “unauthorized access” of a computer or phone, but its vague language has meant that it’s often unevenly applied in court. Some states have passed cybersecurity and privacy laws, such as California’s Comprehensive Computer Data Access and Fraud Act, which bans electronic tampering or interference. WhatsApp has cited both laws in an ongoing court case against NSO.

Are there things I can do to make myself safer? – Spotlight on Israeli based Pegasus Spyware software

There are cybersecurity basics that make people somewhat safer from hacks of all sorts. Keep your devices and their software up to date, preferably by activating “automatic updates” on your settings. Devices over five years old — especially if they are running outdated operating systems — are particularly vulnerable.

Use a unique, hard-to-guess password for each device, site and app you use, and avoid easily predictable ones based on your phone number, date of birth or the names of your pets. A password manager such as LastPass or 1Password can make that easier. You should also turn on “two-factor authentication” everywhere you can: Those sites will ask not just for your password but for a second code, either sent to your phone or accessible via a separate authenticator app.

Avoid clicking on links or attachments from people you don’t recognize. Whenever possible, activate “disappearing messages” or similar settings so communications automatically vanish after a set period of time.

Who else can help protect my privacy? – Spotlight on Israeli based Pegasus Spyware software

The entities with the most power to thwart spyware are probably makers of devices and software, such as Apple and Google. They have been improving security on their smartphone (phones spyware) operating systems for years — but not enough to entirely thwart Pegasus and similar malware. Giant “cloud computing” companies can also take action to prevent their servers from helping the attacks: Both Microsoft and Amazon Web Services say they have taken steps to block malware when they’ve learned their systems were being used to transmit it.