Timeline

  1. An incendiary parcel sets fire to a DHL warehouse near Birmingham; Western officials later say they suspect Russian military intelligence

  2. Hackers push supermarket fridges in France to about 50°C overnight

  3. A second wave of freezer hacks hits supermarkets in seven European countries

  4. Emailed bomb threats disrupt at least 14 flights across Europe in a day, the biggest of the week's waves

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