https://www.kiratas.com/2023/10/15/after-a-court-ban-portugal-makes-a-new-attempt-at-data-retention/

"For data protection advocates, data retention has long been a “zombie” that keeps rearing its head. This is currently being confirmed again in Portugal. There, the two major popular parties, the social democratic PS and the conservative-liberal PSD, with the support of other parliamentary forces and the government, agreed on another bill for the logging of user traces without cause. This is reported by the Portuguese weekly newspaper Diário de Notícias. Essentially, this is intended to introduce six-month storage of location and connection data."

"The initiative is surprising because in April 2022 the Portuguese Constitutional Court declared the crucial data retention clauses in a 2008 national law unconstitutional. The articles, which were found to be invalid, stipulated that providers of telecommunications and internet services had to keep user traces for a period of one year, even in the event of unsuccessful call attempts, and to release them in order to prevent and prosecute serious crimes. The Tribunal Constitucional (TC), in the light of the case law of the European Court of Justice (ECJ), concluded that “an undifferentiated and generalized obligation to store” all traffic data of all individuals “disproportionately restricts the right to privacy and informational self-determination.”"