ATHENS — Prime Minister Kyriakos Mitsotakis introduced on Monday that Greece would ban the sale of adware, after his authorities was accused in a information report of concentrating on dozens of distinguished politicians, journalists and businessmen for surveillance, and the judicial authorities started an investigation.

The announcement is the newest chapter in a scandal that erupted over the summer time, when Mr. Mitsotakis conceded that Greece’s state intelligence service had been monitoring an opposition get together chief with a standard wiretap final 12 months. That revelation got here after the politician found that he had additionally been focused with a adware program referred to as Predator.

The Greek authorities stated the wiretap was authorized however by no means specified the explanations for it, and Mr. Mitsotakis stated it was executed with out his data. The federal government has additionally asserted that it doesn’t personal or use the Predator adware, and has insisted that the simultaneous concentrating on with a wiretap and Predator was a coincidence.

Mr. Mitsotakis has rejected allegations that he was personally operating a Predator adware scheme. “It’s an unbelievable lie,” he stated. He insisted that Greece’s intelligence service was not utilizing Predator, however stated somebody outdoors the federal government is likely to be.

On Monday, he stated in a televised interview: “We would be the first nation to deal with this drawback and enact laws that can explicitly ban the sale of such software program in our nation. No different nation has executed it. All nations have the identical drawback.”

Governments the world over are struggling to manage using cybersurveillance instruments, probably the most distinguished of which is Pegasus, a premium offensive cybersurveillance adware made by the Israeli adware firm NSO Group. Predator is gaining prominence globally as a less expensive and fewer regulated various. The highly effective weapons infiltrate smartphones, swoop up their contents and switch them into listening and recording gadgets.

They’ve been used to hack the telephones of staff at El Salvador’s main information outlet, El Faro, and the gadgets of high-ranking Palestinian diplomats. Based on just lately leaked emails, adware has additionally been deployed by the Mexican authorities to compromise the telephones of journalists and an activist.

Legislation enforcement and intelligence companies say they want the adware to take care of an edge over criminals and terrorists, however regulating their use and guaranteeing that they aren’t used in opposition to political opponents and journalists has proved to be troublesome, even in Europe, the place protections are speculated to be sturdy. Final 12 months, The Biden administration blacklisted Pegasus, barring American corporations from doing enterprise with NSO, as a result of, it stated, the corporate had acted “opposite to the nationwide safety or overseas coverage pursuits of the US.”

A lot in regards to the scenario in Greece stays murky. The authorities have characterised using Predator as unlawful, although not its sale. Mr. Mitsotakis provided no particulars about how a ban on adware gross sales would work, or how it could have an effect on adware use.

For months the Greek authorities ignored calls from journalists and opposition events to analyze Predator’s maker, Intellexa, which moved its headquarters to Greece from Cyprus in 2021.

The Greek investigative reporter Thanassis Koukakis revealed he was hacked final 12 months with Predator, and likewise claimed that he was monitored by the Greek intelligence service, an allegation that has not been formally confirmed however is the main target of a judicial investigation.

The socialist get together chief Nikos Androulakis, who’s a member of the European Parliament, stated that the Parliament’s technical providers workplace in Brussels had discovered that his telephone was focused with a textual content message carrying Predator malware. Mr. Androulakis didn’t take the bait.

An investigation has begun into Mr. Androulakis’s case.

Mr. Mitsotakis acknowledged that Greece’s state intelligence service had been monitoring Mr. Androulakis with a standard wiretap beneath a particular warrant. The surveillance had been ordered ostensibly for causes of nationwide safety. The monitoring ended with none motion by the authorities.

On Sunday, the Greek newsmagazine Documento reported {that a} shady surveillance community answering to Mr. Mitsotakis had focused Antonis Samaras, a former conservative prime minister; the present overseas and finance ministers; and different cupboard members perceived as potential rivals to Mr. Mitsotakis in a attainable management problem. (The following Greek elections should be held earlier than summer time 2023.)

Based on the report, the surveillance had been carried out out of the Greek state intelligence service and had made use of Predator. The newsmagazine cited as its sources two unnamed individuals who had key roles within the surveillance, however didn’t supply proof to again the allegations.

The accusations sparked a political uproar, with the federal government’s spokesman, Giannis Oikonomou, saying they have been based mostly on no proof and describing the journal’s writer, Kostas Vaxevanis, as a “nationwide slanderer.”

Mr. Vaxevanis, an investigative journalist who’s broadly perceived as having shut ties with the leftist opposition get together Syriza, stated he had arduous proof, together with recorded conversations, and would reveal all in due time. On Monday, he visited Greece’s Supreme Courtroom after the prosecutor ordered an investigation into the claims.

Syriza’s spokesman, Nasos Iliopoulos, denounced the authorities for not providing convincing solutions concerning the work of Greek intelligence and for not investigating Intellexa.

The claims in Documento got here after a European Parliament committee investigating using surveillance malware referred to as on the Greek authorities to conduct a deeper inquiry.

The outcomes of a Greek parliamentary investigation have been inconclusive, with lawmakers from the governing get together discovering no proof of wrongdoing. The opposition referred to as it a cover-up.

Niki Kitsantonis reported from Athens, and Matina Stevis-Gridneff from New York.