The attack interrupted final negotiations over the Budget of the European Union, with participants taking breaks to watch TV news of the events.
Commission Vice-President Kristalina Georgieva said that the events encouraged shocked negotiators to end the talks quickly, with a final agreement five days before 18 November deadline.
[25] Commission Vice-President Federica Mogherini and EU defence ministers backed France's request for help in military missions after they invoked Article 42.7 of the Treaty of the European Union for the first time since its creation.
[32] Meeting reports indicated that Schengen area border controls have been tightened for EU citizens entering or leaving, with passport checks[33] and systematic screening against biometric databases.
[34] Poland's European affairs minister designate Konrad Szymański declared that, in the wake of the attacks, he saw no possibility of enacting the recent EU refugee relocation scheme.
[49] However, an expert, Gerard Van Kessel, retired director-general of the refugees branch at Citizenship and Immigration Canada, warned on 23 November 2015 that a five or six weeks is not adequate to complete security checks and resettle 25,000 people.
[51] On 22 November 2015, the Canadian Broadcasting Corporation reported that (according to unnamed sources) Canada will limit the acceptance of Syrian refugees to only women, children and families, screening out unaccompanied men.
[52] Public Safety Minister Ralph Goodale assured Canadians that a robust screening process would be used overall, but admitted that some checks would be done once the refugees were already in Canada.
[53] However, a criminologist, Barry Cartwright of Simon Fraser University is convinced that it's impossible to do thorough security checks "in a region where there are basically no recognized police departments.
[272] French foreign exchange students gathered in Union Square in New York City where they lit candles and sang "La Marseillaise".
On 14 November, German pianist Davide Martello towed his grand piano by bike to the Bataclan theatre, where a reported 80 people had died in the attack.
[285] On 17 November, England played France at Wembley Stadium, London with fans of both teams uniting to sing the French national anthem, "La Marseillaise", before a minute's silence.
[295] In the wake of the attack, phrases such as "Je Suis Paris" and "We are all Parisians" appeared on news broadcasts and social media websites worldwide to show solidarity with the victims.
[313] In the days following the attacks, the French news and entertainment show Le Petit Journal sent its reporters on to the streets of Paris to document the public's reactions.
[315] The hacktivist group Anonymous declared "war" on ISIL in its largest operation to date,[316] and by the second day claimed to have taken down 3,824 pro-ISIL Twitter accounts[317] and doxxed multiple recruiters.
[318] The National Football League has implemented metal detectors and increased security inside and outside its stadiums for the games that played during week 10 of the 2015 season as spectators were discouraged from bringing non-plastic clear bags into the venues.
[319][320] The WWE has changed its security guidelines[321] and held a moment of Silence prior to the 16 November episode of Monday Night Raw displaying the French Flag and the Eiffel Tower in the form of Peace for Paris.
[322] At a football match against Greece, some Turkish supporters booed during a minute of silence in commemoration of the attacks, and a section reportedly shouted "Allahu akhbar," an incident echoing what had previously happened during a minute of silence for the victims of the October Ankara bombings,[323] in which minority Alevis and Kurds made up the majority of the Ankara bombing victims.
[327][328] Saudi Arabia, the UAE, Kuwait, Qatar and Egypt have been among the Arab states leading condemnations of the simultaneous attacks in Paris, in addition to Morocco, Bahrain, Iraq, Turkey, and Iran.
[337] In a press release by the Australian National Imams Council, the Grand Mufti of Australia Ibrahim Abu Mohamed made some controversial remarks that: "These recent incidents highlight the fact that current strategies to deal with the threat of terrorism are not working.
It is therefore imperative that all causative factors such as racism, Islamophobia, curtailing freedoms through securitisation, duplicitous foreign policies and military intervention must be comprehensively addressed".
Comments after the attack by American CIA Director John Brennan blamed disclosures by Edward Snowden and availability of encryption for aiding terrorist networks,[342] though this idea was opposed in a New York Times editorial as "a new and disgraceful low".