Koronavilkku reports exposure but no key matches exist in logs

[laaksom3]

Koronavilkku reports a possible exposure. Nevertheless, all of the log entries (altistustarkistukset) for the past two weeks have zero key hits (avainosumien määrä 0). The timestamp of the newest log entry is after the exposure became visible in the app.

If I have understood correctly, an exposure can only be reported if there is match found between the keys in my phone and the ones on the server (from infected people). Thus, there should be at least one key hit in the logs.

• Device: iPhone 8
• OS Version: iOS 14.0.1
• Koronavilkku: 1.1.0 (289)

[ghost]

This looks like a duplicate of corona-warn-app/cwa-app-ios#1106. According to the comments the exposure is real but the logging output is wrong and it will be fixed in iOS 14.2 – I'll confirm with information with Apple.

Can you export the logs from the bottom of the Altistustarkistukset screen for more detailed output?

[laaksom3]

Here's the content of the json file that I exported a few days back.

{
  "Build" : "18A393",
  "ExportVersion" : 2,
  "ExposureChecks" : [
    {
      "Timestamp" : "2020-10-10 08:15:59 +0300",
      "Files" : [
        {
          "Hash" : "6A2EA597652C38650617716432A433A529255CF950010668ADDB065910778EB9",
          "MatchCount" : 0,
          "KeyCount" : 720,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-10 08:15:59 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-09 20:07:43 +0300",
      "Files" : [
        {
          "Hash" : "0CFB54DB377BAEE877FA9A6B026564B2C4488A95D02F31C6F18CBB239F534AB1",
          "MatchCount" : 0,
          "KeyCount" : 640,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-09 20:07:43 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-08 07:30:11 +0300",
      "Files" : [
        {
          "Hash" : "EEEC4B3ECD54E25F576B1FF44ACC4ACBB2D2EA5BB80891BA8A31A21C51D59D4E",
          "MatchCount" : 0,
          "KeyCount" : 445,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-08 07:30:11 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-07 09:39:57 +0300",
      "Files" : [
        {
          "Hash" : "448195D25E4D2E62B15754CEC6D82251BC694E6928A3CFFA8A2A4DBCAF706E2A",
          "MatchCount" : 0,
          "KeyCount" : 578,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-07 09:39:57 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-06 08:30:49 +0300",
      "Files" : [
        {
          "Hash" : "41E45BB1F59841C791929923A9F823F7B891D33188F8C8241DFEF0E29CF5F9E8",
          "MatchCount" : 0,
          "KeyCount" : 655,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-06 08:30:49 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-05 22:13:17 +0300",
      "Files" : [
        {
          "Hash" : "B97CE93EFFE2B986C636E50BBA2A11C297C92DDDBD9AD70F612C3CFC90D95EEE",
          "MatchCount" : 0,
          "KeyCount" : 453,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-05 22:13:17 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-04 10:47:42 +0300",
      "Files" : [
        {
          "Hash" : "B5356E1E27E9EA5D531E5278B184B3F0C604BDFF0A2D62D4973D00BCB6EC5DC3",
          "MatchCount" : 0,
          "KeyCount" : 294,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-04 10:47:42 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-03 19:21:44 +0300",
      "Files" : [
        {
          "Hash" : "88F5AA364B4C25A08385C1051104C1C9719E2086AFB9DA191129CA4E55B38800",
          "MatchCount" : 0,
          "KeyCount" : 463,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-03 19:21:44 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-02 08:23:47 +0300",
      "Files" : [
        {
          "Hash" : "C72AA7C97C616601F35AF344926E87EA6CD7B644A467BC36B7D3E4F2946CA96B",
          "MatchCount" : 0,
          "KeyCount" : 169,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-02 08:23:47 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-10-01 08:21:17 +0300",
      "Files" : [
        {
          "Hash" : "983F489335DDED2EA3C2360F82F5DFD26C2D8F61A5239F7C1CC9941527CFF703",
          "MatchCount" : 0,
          "KeyCount" : 203,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-10-01 08:21:17 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-09-30 09:11:17 +0300",
      "Files" : [
        {
          "Hash" : "2FF5494607DC4285C012A03B62AA56E098D75D49B8A939361135CEC5723F0B40",
          "MatchCount" : 0,
          "KeyCount" : 318,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-09-30 09:11:17 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-09-29 15:03:13 +0300",
      "Files" : [
        {
          "Hash" : "6EE2174E8C356470C854C42112680EA8306A6F2767D371A6F0D1A1CBA8B8D537",
          "MatchCount" : 0,
          "KeyCount" : 238,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-09-29 15:03:13 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-09-28 08:42:39 +0300",
      "Files" : [
        {
          "Hash" : "828C936B2334998A2F1EEC49D0E483AA69BEA01DDB4D1998BF2F6E59B995AE34",
          "MatchCount" : 0,
          "KeyCount" : 199,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-09-28 08:42:39 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-09-27 08:23:46 +0300",
      "Files" : [
        {
          "Hash" : "6DF39B9A629FE32602CB791E72F8512F8779EC567C53151F165ADF5AAED8CCB8",
          "MatchCount" : 0,
          "KeyCount" : 141,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-09-27 08:23:46 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    },
    {
      "Timestamp" : "2020-09-26 08:05:02 +0300",
      "Files" : [
        {
          "Hash" : "00FE5A1295CBA1096BD1099F7A8221E051F2D3573E1F9C434782426CFA6B74F7",
          "MatchCount" : 0,
          "KeyCount" : 242,
          "AppBundleIdentifier" : "fi.thl.koronahaavi",
          "Timestamp" : "2020-09-26 08:05:02 +0300"
        }
      ],
      "AppBundleIdentifier" : "fi.thl.koronahaavi"
    }
  ],
  "DeviceProductType" : "iPhone10,4"
}

[Ein-Tim]

Hey @laaksom3
This should be fixed with iOS 14.1, so if you (or anybody here from the community) can confirm this, the problem is solved 👍