On 6 October 2020, the Grand Chamber of the European Court of Justice rendered two landmark judgments in Privacy International, La Quadrature du Net and Others, French Data Network and Others as well as Ordre des barreaux francophones et germanophone and Others. The Grand Chamber confirmed that EU law precludes national legislation which requires a provider of electronic communications services to carry out the general and indiscriminate transmission or retention of traffic data and location data for the purpose of combating crime in general or of safeguarding national security.

In situations where a Member State is facing a serious threat to national security which proves to be genuine and present or foreseeable, such State may however derogate from the obligation to ensure the confidentiality of data relating to electronic communications by requiring, by way of legislative measures, the general and indiscriminate retention of this data for a period which is limited in time to what is strictly necessary but which may be extended if the threat persists.¹ In respect of combating serious crime and preventing serious threats to public security, a Member State may also provide for the targeted retention of this data and its expedited retention. Such an interference with fundamental rights must be accompanied by effective safeguards and be reviewed by a court or by an independent administrative authority. It is likewise open to a Member State to carry out a general and indiscriminate retention of IP addresses assigned to the source of a communication where the retention period is limited to what is strictly necessary or even to carry out a general and indiscriminate retention of data relating to the civil identity of users of means of electronic communication. In the latter case, the retention is not subject to a specific time limit.

2020年10月6日，欧洲法院大审判庭在国际隐私国际组织，互联网四方网络（La Quadrature du Net）和其他，法国数据网络（France）网络和其他以及Ordre des barreaux法语和德国电话等上做出了两项具有里程碑意义的判决。大会议厅确认，欧盟法律排除了国家法律，该法律要求电子通信服务的提供者出于一般犯罪目的或维护国家安全的目的，进行交通数据和位置数据的一般性和不加区别的传输或保留。

但是，在某个成员国正被证明是真实，存在或可预见的严重威胁其国家安全的情况下，该成员国可放弃采取立法措施要求确保与电子通信有关的数据保密的义务。 ，此数据的一般性和不加区分的保留时间仅限于严格必要的时间，但如果威胁持续存在，则可以延长。^1个在打击严重犯罪和防止对公共安全的严重威胁方面，会员国还可以规定有针对性地保留该数据并予以迅速保留。这种对基本权利的干涉必须伴随有效的保障措施，并由法院或独立的行政当局进行审查。对于保留分配给通信源的IP地址，会员国也可以对其进行普遍而随意的保留，而保留期限仅限于严格必要的期限，或者甚至可以对有关数据进行普遍而随意的保留。以电子通讯方式使用者的公民身份。在后一种情况下，保留不受特定时间限制。