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• Your guide to cookies, web analytics, and GDPR compliance

  25 février 2020, par Joselyn Khor — Analytics Tips, Privacy, Security
  It’s been almost two years since the GDPR came into effect and turned the online world on its head. Confusion around cookies/cookie consent/cookie compliance remains till today. So we’d like to take this chance to talk more about the supposed “big bad” of the latest century. 

  Online cookies seem to have a bad reputation, but are they as bad as they seem ?

  To start, what are cookies on the internet ?

  An internet cookie a.k.a. an HTTP cookie, is a small piece of data sent from websites that is stored on your computer or mobile when you visit that site.

  Are all cookies bad ?

  No. Cookies themselves are usually harmless as they can’t infect computers with malware. 

  They can also be helpful for both websites who use them and individuals visiting those websites. For example, when online shopping, cookies on ecommerce sites keep track of what you’re shopping for. If you didn’t have that tracking, your cart would be empty every time you moved away from that site.

  For businesses/websites, cookies can be used for authentication (logins) and tracking website user experience. For example, tracking multiple visits to the same site in order to provide better experiences to customers visiting their website.

  

  The not-so-sweet types of cookies :

  Cookies that contain personal data

  Another example of a bad cookie is when cookies contain personal data directly in the cookie itself. For example, when websites store demographics or your name in a cookie ; or when a website stores survey results in a cookie. Use of cookies in these ways is considered bad practice nowadays.

  Third-party cookies
  

  They can be used by websites to learn about your visit and activity across multiple websites. Cookies can enter harmful territory when employed for “big brother” types of tracking i.e. when they’re used to build a virtual fingerprint of individuals after their activity is tracked from website to website. For example most advertising networks create third party cookies in your browser when you view an ad, which lets these advertisers track users across these websites and let companies buy more targeted ads.

  Why does Matomo use cookies ?

  

  For accurate reporting of new and returning visitors. Matomo uses cookies to store some information about visitors between visits. We also use cookies to remember if someone gave consent to tracking, or opted out of tracking. 

  Types of cookies Matomo uses :

  • Matomo by default uses first-party cookies, set on the domain of your site.
  • Cookies created by Matomo start with : _pk_ref, _pk_cvar, _pk_id, _pk_ses. See a list of all Matomo cookies : https://matomo.org/faq/general/faq_146/

  Cookie-less tracking - disable cookies and ensure cookie compliance :

  It’s possible to disable tracking cookies in Matomo by adding a line on the javascript code. When cookies are disabled, Matomo data will become slightly less accurate. Also, when cookies are disabled, there may still be a few cookies created in specific cases.

  If you disable cookies, Matomo tries to detect unique visitors by a fingerprint based on a few browser attributes : operating system, browser, browser plugins, IP address and browser language.

  By disabling tracking cookies, you may also use Matomo without needing to display a cookie consent screen. You can also keep tracking when they reject cookie consent by keeping cookies disabled.

  Cookies and the GDPR

  In some countries and according to the GDPR, websites need to provide a way for users to opt-out of all tracking, in particular tracking cookies.

  The GDPR regulates the use of cookies when they compromise an individual’s privacy. When cookies can identify an individual, it is considered personal data.

  

  Cookie compliance and the GDPR

  To be GDPR compliant you must :

  • Receive user consent before using any cookies (except strictly necessary cookies). Read more on cookies that are “clearly exempt from consent”.
  • Provide accurate and specific information about the data each cookie tracks and its purpose in plain language before consent is received.
  • Document and store consent received from users.
  • Allow users to access your service even if they refuse to allow the use of certain cookies
  • Make it as easy for users to withdraw their consent as it was for them to give their consent in the first place.

  Source : https://gdpr.eu/cookies/

  When does GDPR require cookie consent ?

  The purpose of the GDPR is to give individuals control over their personal data. As such this regulation has provisions and requirements which regulate the processing of personal data to protect the privacy of individuals. 

  This means in order to use cookies, you will sometimes need explicit consent from those individuals.

  When does GDPR not require cookie consent ?

  Then there are many cookies that generally do NOT require consent (Source : https://wikis.ec.europa.eu/display/WEBGUIDE/04.+Cookies). 

  These are :

  • user input cookies, for the duration of a session
  • authentication cookies, for the duration of a session
  • user-centric security cookies, used to detect authentication abuses and linked to the functionality explicitly requested by the user, for a limited persistent duration
  • multimedia content player session cookies, such as flash player cookies, for the duration of a session
  • load balancing session cookies and other technical cookies, for the duration of session
  • user interface customisation cookies, for a browser session or a few hours, when additional information in a prominent location is provided (e.g. “uses cookies” written next to the customisation feature)

  Tracking cookies and consent vs legitimate interest

  

  User consent is not always required :

  We understand that whenever you collect and process personal data, you need – almost always – to ask for their consent. However, there are instances where you have to process data under “legitimate interests”. The GDPR states that processing of personal data is lawful “if processing is necessary for the purposes of the legitimate interests”. This means if you have “legitimate interests” you can avoid asking for consent for collecting and processing personal information. Learn more : https://cookieinformation.com/resources/blog/what-is-legitimate-interest-under-the-gdpr 

  A lawful basis for processing personal data (proceeding with caution) :

  We’ve also written about having a lawful basis for processing personal data under GDPR with Matomo. The caveat here is you need to have a strong argument for legitimate interests. If you are processing personal data which may represent a risk to the final user, then getting consent is, for us, still the right lawful basis. If you are not sure, at the time of writing ICO is providing a tool in order to help you make this decision.

  How is Matomo Analytics GDPR compliant ?

  Matomo can be configured to automatically anonymise data so you don’t process any personal data. This allows you to completely avoid GDPR. If you decide to process personal data, Matomo provides you with 12 steps to easily comply with the GDPR guidelines.

  New developments on cookies and the GDPR

  In the early days of the GDPR, a spate of cookie management platforms (CMPs) popped up to help websites and people comply with GDPR rules around cookies.

  These have become problematic in recent years. Europe’s highest court ruled pre-checked box for cookie boxes does not give enough consent. 

  As well as that, new research suggests most cookie consent pop-ups in the EU fall short of GDPR. A new study called, ‘Dark Patterns after the GDPR’ from MIT, UCL and Aarhus University found that a vast majority of websites aren’t following GDPR rules around cookies. The study found most cookie consent pop-ups in the EU to be undermining the GDPR by finding sneaky ways to convince website visitors to click ‘accept’.

  Disclaimer

  We are not lawyers and don’t claim to be. The information provided here is to help give an introduction to issues you may encounter when dealing cookies. We encourage every business and website to take data privacy seriously and discuss these issues with your lawyer if you have any concerns. 

  Additional resources :

  • How do the cookie rules relate to the GDPR ? 
  • Cookies, the GDPR, and the ePrivacy Directive

• Piwik PRO is hiring a Project Coordinator (Job description)

  18 février 2015, par Matthieu Aubry — Jobs

  At Piwik and Piwik PRO we develop the leading open source web analytics platform, used by more than one million websites worldwide. Our vision is to build the best open alternative to Google Universal Analytics. We are growing and now looking for a Project Coordinator !

  What will you be doing ?

  • Participating in calls with Piwik PRO clients and analyzing requirements for enterprise customers
  • Planning and coordinating the implementation of projects
  • Helping customers to improve and adjust data reporting methods to suit their needs
  • Functioning as the voice of the customer and provide internal feedback on how Piwik PRO can better serve our customers

  What do we expect from you ?

  • Fluent command of English (both in writing and speaking), confidence to communicate in formal conversations and a good knowledge of business English
  • Previous experience in working with corporate clients
  • Great communication skills
  • A proactive attitude and the ability to use your initiative
  • Ability to achieve goals without detailed instructions

  Possessing these assets would be an advantage :

  • Technical knowledge associated with using data analytics platforms
  • Data analysis and interpretation skills
  • Knowledge of German or French
  • Knowledge of Piwik Analytics

  What can you expect from us ?

  • Flexible cooperation
  • An attractive salary
  • The opportunity to develop your skills and gain more experience by working on exceptional projects
  • Multisport Card
  • Access to a regularly updated resource library and the opportunity to contribute to it
  • Flexible working hours
  • Unforgettable parties and integration trips
  • A completely unique work atmosphere – we really like to keep things informal

  Location

  We have offices in Poland and New Zealand, and Remote work is possible.

  Ideally you will be located in the USA or in Europe where most of our clients are based.

  Apply online

  To apply for this position, please Apply online here. We look forward to receiving your applications !

• Malformed header from CGI script

  13 janvier 2014, par user3188518

  This message is driving me crazy :

  Malformed header from CGI script:
  
  ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on May 10 2013 16:31:05 with gcc 4.8.0 (GCC) 20130502 (prerelease)
  
    configuration: --prefix=/usr --disable-debug --disable-static --enable-avresample --enable-dxva2 --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-postproc --enable-runtime-cpudetect --enable-shared --enable-vdpau --enable-version3 --enable-x11grab
  
    libavutil      52. 18.100 / 52. 18.100
  
    libavcodec     54. 92.100 / 54. 92.100
  
    libavformat    54. 63.104 / 54. 63.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 42.103 /  3. 42.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  Guessed Channel Layout for  Input Stream #0.0 : stereo
  
  Input #0, wav, from '/projekt/aplikacja/app/92ed9478ecfa4a4dfb176f417d4ef66c/2014-01-12-220148_sample_1.wav':
  
    Duration: 00:02:35.62, bitrate: 1411 kb/s
  
      Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
  
  Output #0, wav, to '/projekt/aplikacja/app/webroot/files/preview/2014-01-12-234038_52d327f6b2939.wav':
  
    Metadata:
  
      ISFT            : Lavf54.63.104
  
      Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, 1411 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  size=     864kB time=00:00:05.01 bitrate=1411.3kbits/s    
  
  video:0kB audio:864kB subtitle:0 global headers:0kB muxing overhead 0.009042%
  
  Status: 302
  
  Location: http://www.example.org/
  
  Content-type: text/html

  After executing this function :

     public function createpreview(){
  
           if ($this->request->is('post')) {
  
             foreach($this->request->data['TrackId'] as $key => $value){
  
                  $TrackId[] = $key;
  
              }
  
              $this->Track->recursive = -1;
  
              $view =  $this->Track->find('all', array(
  
                                'conditions' => array(
  
                                "Track.id" => $TrackId
  
                                 )));
  
              ini_set('date.timezone', 'Europe/London');
  
  
  
             foreach ($view as $v){
  
                $comand_1 = 'ffmpeg -i '.APP.'92ed9478ecfa4a4dfb176f417d4ef66c'.DS. $v['Track']['filename'].' 2>&1';
  
                $time_data = shell_exec($comand_1);
  
                $search = '/Duration: (.*?),/';
  
                $duration = preg_match($search, $time_data, $matches, PREG_OFFSET_CAPTURE, 3);
  
                $time = explode('.', $matches[1][0]);
  
                $time = explode(":", $time[0]);
  
                $seconds = $time[0]*3600 + $time[1]*60 + $time[2];
  
                if ($seconds >= 30){
  
  
  
               $now = date('Y-m-d-His');
  
                   $prew_file_name = $now .'_'. uniqid().'.wav';
  
                   $comand_2 = 'ffmpeg  -ss 00:00:25.000 -analyzeduration 99999999  -i '.APP.'92ed9478ecfa4a4dfb176f417d4ef66c'.DS. $v['Track']['filename'].' -t 5 -c:v copy -c:a copy '.WWW_ROOT.'files'.DS.'preview'.DS.$prew_file_name;
  
                      $t = shell_exec($comand_2);
  
                      $this->Track->updateAll(array('Track.preview' => "'.$prew_file_name.'"), array('Track.id' => $v['Track']['id']));
  
                    }
  
                 }
  
  
  
          }
  
           header('Location: http://www.example.org/');
  
         // $this->redirect(array('controller'=>'albums', 'action'=>'menage_index'));
  
     }

  As far as i know this shell_exec($comand_2) couses error (after i comment it out, it redirects me correctly).Googling this didn't gave me answers, the wierd part is previews aka shell_exec($comand_2) are made and fine, i just can't get it to redirect me. I tried non cake way but it doesn't work either.

  What I'm doing wrong ?