{
  "capsule": {
    "schema": "apk-scanner.proof/v2",
    "issuer": "apk-scanner.com",
    "issued_at": "2026-10-14T04:15:20.358Z",
    "app": {
      "app_id": "com.polarsteps",
      "title": "Polarsteps",
      "version": "10.12.0"
    },
    "analysis": {
      "issues": [],
      "stages": {
        "pii": "complete",
        "sbom": "complete",
        "signing": "certificate_parsed",
        "strings": "complete",
        "manifest": "complete"
      },
      "status": "complete",
      "grading": {
        "policy": "static-coverage-v1",
        "blockers": [],
        "eligible": true
      },
      "timings_ms": {
        "total": 18534.048,
        "harvest": 5239.345000000002,
        "detectors": 11936.34700000005
      },
      "bytes_total": 111878576,
      "bytes_scanned": 111878576,
      "bytes_skipped": 0,
      "files_processed": 3426,
      "coverage_version": 2,
      "string_encodings": [
        "ascii",
        "utf16le"
      ],
      "signature_validation": "not_performed"
    },
    "provenance": {
      "mode": "static",
      "artifacts": [
        {
          "name": "base.apk",
          "sha256": "97dc60ec3e8e97490f237997398e5d1704877c25ad5ebf291d177b0ef21d80e4"
        },
        {
          "name": "config.arm64_v8a.apk",
          "sha256": "1fdbec52655560f920684dcdad0fd0e5389de1c8c691be89c02eac5a62399220"
        },
        {
          "name": "config.xxhdpi.apk",
          "sha256": "8a35327fc3b5e2e4a071df18be946b1cc8bb56a83882a901cb45b088d538469b"
        }
      ],
      "ruleset_sha256": "69544396ce47de08b97fb3d04080662e1cbb38c704bd5aa3d4b7e5489cde22e8"
    },
    "apk_sha256": "97dc60ec3e8e97490f237997398e5d1704877c25ad5ebf291d177b0ef21d80e4",
    "scan": {
      "scan_id": "3e3dbe89-d821-49f5-9619-bd7ac0ce4506",
      "scanned_at": "2026-09-29T09:49:13.596Z",
      "grade": "A",
      "score": 95
    },
    "apk_signer": {
      "scheme": "v3",
      "subject_o": "Polarsteps",
      "subject_cn": null,
      "sha256": "72ca09e4c9627633d84b9bbae9480fbe5074e4538180a9c26d3ecfebdd1091f2",
      "not_after": "2076-05-12T10:17:51+00:00"
    },
    "counts": {
      "critical": 0,
      "high": 0,
      "medium": 0,
      "low": 10
    },
    "findings": [
      {
        "finding_type": 1,
        "severity": "low",
        "title": "Amazon S3 bucket reference",
        "redacted_display": "https://██████████.s3-eu-west-1.amazonaws.com/███",
        "fingerprint": "4dcc52d9afdb85a1ce039f8e926dd1f5a490736c5a38d719789a2aeb63c5df56",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 1,
        "severity": "low",
        "title": "Amazon S3 bucket reference",
        "redacted_display": "https://██████████.s3-eu-west-1.amazonaws.com/███",
        "fingerprint": "5403a7eb2a6717d39d7bcfb1b7675c2c6918af338e6b71f3a079fbe3b19c90c5",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 1,
        "severity": "low",
        "title": "Amazon S3 bucket reference",
        "redacted_display": "https://██████████.s3.amazonaws.com/███",
        "fingerprint": "e573ea0889946ef12b6303e6304dab4190df8b9304e3a4f0140b7a2637997c25",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 1,
        "severity": "low",
        "title": "Amazon S3 bucket reference",
        "redacted_display": "https://██████████████████████.s3.amazonaws.com/███",
        "fingerprint": "382a11c219defb6b23f3a78fc4bac0b65120fab0f0748901d2af61fba7439171",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 2,
        "severity": "low",
        "title": "Firebase Realtime Database reference",
        "redacted_display": "https://██████████████████.firebaseio.com/███",
        "fingerprint": "b50a78d22bd64c88b9a580575ce014c5a580fcd3842a4906f8608be32195385f",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 20,
        "severity": "low",
        "title": "Google API key (client-shipped; restriction unverified)",
        "redacted_display": "AIza•••••••• (21–40 chars, redacted)",
        "fingerprint": "807ad3401192882e875fa177b0b4c06446486deb17326f4ef73ed8f82dea16df",
        "verified": false,
        "cwe": [
          "CWE-798"
        ],
        "masvs": [
          "MASVS-STORAGE-1"
        ],
        "remediation": "Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control."
      },
      {
        "finding_type": 53,
        "severity": "low",
        "title": "Firebase Storage bucket reference",
        "redacted_display": "████████████",
        "fingerprint": "8aee438ae9134dad22db01a513980ea7fe4c8e215063db0006d7669074a9ff4f",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 53,
        "severity": "low",
        "title": "Firebase Storage bucket reference",
        "redacted_display": "████████████",
        "fingerprint": "6da605c01a32d6178ae1e6876876e3de02277efaeb0bf30b781056b6efdcc7a8",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 53,
        "severity": "low",
        "title": "Firebase Storage bucket reference",
        "redacted_display": "████████████",
        "fingerprint": "b6e2cb8eb4bf3d0a7bcb1c02e7aaa6b80181f3fefcd2655ab608c7c76f9d6977",
        "verified": false,
        "cwe": [
          "CWE-200",
          "CWE-284"
        ],
        "masvs": [
          "MASVS-STORAGE-2"
        ],
        "remediation": "Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open."
      },
      {
        "finding_type": 60,
        "severity": "low",
        "title": "Background location access with advertising SDKs present",
        "redacted_display": "background location + ad SDKs",
        "fingerprint": "0c010d775be9542eee48043eb496c06888f9b8e8fcdf3af66a6b84e99192f6ce",
        "verified": false,
        "cwe": [
          "CWE-359"
        ],
        "masvs": [
          "MASVS-PRIVACY-1"
        ],
        "remediation": "Justify background location; request foreground-only where possible and disclose the use in the Play Data Safety form."
      }
    ],
    "live_verification": {
      "verified_count": 0,
      "items": []
    },
    "trackers_count": 16,
    "pii": {
      "sources": 9,
      "identifiers": [
        "Advertising ID (AAID)",
        "Android ID",
        "Device ID / IMEI"
      ],
      "destinations": 13
    },
    "sbom": {
      "component_count": 1,
      "vuln_count": 0,
      "components": [
        {
          "name": "com.squareup.okhttp3:okhttp",
          "version": "5.4.0",
          "cves": []
        }
      ]
    },
    "control_coverage": {
      "schema": "apk-scanner.coverage/v1",
      "framework": "OWASP MASVS v2",
      "disclaimer": "Static, metadata-only analysis. Each control is scored evidence-for / gap-signal / requires-manual-testing. This is evidence toward a MASVS assessment, NOT a certification — apk-scanner.com is not an authorized assessment lab. Absence of a static finding does not prove a control passes.",
      "rows": [
        {
          "control": "MASVS-STORAGE-1",
          "category": "STORAGE",
          "title": "The app securely stores sensitive data.",
          "static": "partial",
          "status": "gap-detected",
          "count": 1,
          "findings": [
            {
              "finding_type": 20,
              "key": "google_api_key",
              "title": "Google API key (client-shipped; restriction unverified)",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                798
              ]
            }
          ]
        },
        {
          "control": "MASVS-STORAGE-2",
          "category": "STORAGE",
          "title": "The app prevents leakage of sensitive data.",
          "static": "partial",
          "status": "gap-detected",
          "count": 8,
          "findings": [
            {
              "finding_type": 1,
              "key": "s3_bucket",
              "title": "Amazon S3 bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 1,
              "key": "s3_bucket",
              "title": "Amazon S3 bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 1,
              "key": "s3_bucket",
              "title": "Amazon S3 bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 1,
              "key": "s3_bucket",
              "title": "Amazon S3 bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 2,
              "key": "firebase_rtdb",
              "title": "Firebase Realtime Database reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 53,
              "key": "firebase_storage",
              "title": "Firebase Storage bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 53,
              "key": "firebase_storage",
              "title": "Firebase Storage bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            },
            {
              "finding_type": 53,
              "key": "firebase_storage",
              "title": "Firebase Storage bucket reference",
              "severity": "low",
              "verified": false,
              "relationship": "gap-signal",
              "cwe": [
                200,
                284
              ]
            }
          ]
        },
        {
          "control": "MASVS-CRYPTO-1",
          "category": "CRYPTO",
          "title": "The app employs current strong cryptography and uses it according to best practices.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CRYPTO-2",
          "category": "CRYPTO",
          "title": "The app performs key management according to best practices.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-AUTH-1",
          "category": "AUTH",
          "title": "The app uses secure authentication and authorization protocols.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-AUTH-2",
          "category": "AUTH",
          "title": "The app performs local authentication securely.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-AUTH-3",
          "category": "AUTH",
          "title": "The app secures sensitive operations with additional authentication.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-NETWORK-1",
          "category": "NETWORK",
          "title": "The app secures all network traffic according to current best practices.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-NETWORK-2",
          "category": "NETWORK",
          "title": "The app verifies the identity of the remote endpoint (e.g. certificate pinning).",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PLATFORM-1",
          "category": "PLATFORM",
          "title": "The app uses IPC mechanisms securely.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PLATFORM-2",
          "category": "PLATFORM",
          "title": "The app uses WebViews securely.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PLATFORM-3",
          "category": "PLATFORM",
          "title": "The app uses the user interface securely.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-1",
          "category": "CODE",
          "title": "The app requires an up-to-date platform version.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-2",
          "category": "CODE",
          "title": "The app has a mechanism for enforcing updates.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-3",
          "category": "CODE",
          "title": "The app only uses software components without known vulnerabilities.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-CODE-4",
          "category": "CODE",
          "title": "The app validates and sanitizes all untrusted inputs and follows secure-coding practice.",
          "static": "partial",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-1",
          "category": "RESILIENCE",
          "title": "The app validates the integrity of the platform.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-2",
          "category": "RESILIENCE",
          "title": "The app implements anti-tampering mechanisms.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-3",
          "category": "RESILIENCE",
          "title": "The app implements anti-static-analysis mechanisms.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-RESILIENCE-4",
          "category": "RESILIENCE",
          "title": "The app implements anti-dynamic-analysis techniques.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-1",
          "category": "PRIVACY",
          "title": "The app minimizes access to sensitive data and resources.",
          "static": "yes",
          "status": "gap-detected",
          "count": 1,
          "findings": [
            {
              "finding_type": 60,
              "key": "bg_location",
              "title": "Background location access with advertising SDKs present",
              "severity": "low",
              "verified": false,
              "relationship": "gap-confirmed",
              "cwe": [
                359
              ]
            }
          ]
        },
        {
          "control": "MASVS-PRIVACY-2",
          "category": "PRIVACY",
          "title": "The app prevents identification of the user.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-3",
          "category": "PRIVACY",
          "title": "The app is transparent about data collection and usage.",
          "static": "yes",
          "status": "no-static-findings",
          "count": 0,
          "findings": []
        },
        {
          "control": "MASVS-PRIVACY-4",
          "category": "PRIVACY",
          "title": "The app offers user control over their data.",
          "static": "manual",
          "status": "requires-manual-testing",
          "count": 0,
          "findings": []
        }
      ],
      "categories": [
        {
          "category": "STORAGE",
          "controls": 2,
          "gaps": 2,
          "verified": 0,
          "manual": 0
        },
        {
          "category": "CRYPTO",
          "controls": 2,
          "gaps": 0,
          "verified": 0,
          "manual": 0
        },
        {
          "category": "AUTH",
          "controls": 3,
          "gaps": 0,
          "verified": 0,
          "manual": 3
        },
        {
          "category": "NETWORK",
          "controls": 2,
          "gaps": 0,
          "verified": 0,
          "manual": 0
        },
        {
          "category": "PLATFORM",
          "controls": 3,
          "gaps": 0,
          "verified": 0,
          "manual": 1
        },
        {
          "category": "CODE",
          "controls": 4,
          "gaps": 0,
          "verified": 0,
          "manual": 1
        },
        {
          "category": "RESILIENCE",
          "controls": 4,
          "gaps": 0,
          "verified": 0,
          "manual": 4
        },
        {
          "category": "PRIVACY",
          "controls": 4,
          "gaps": 1,
          "verified": 0,
          "manual": 1
        }
      ]
    }
  },
  "proof": {
    "alg": "ed25519",
    "key_id": "IE6LeZNX4dAAPLGr",
    "digest_sha256": "6bdc4889e2b4df5916144fcfd41dc67c041b5e5d8cfeca0d948ffe363f18c0b1",
    "signature": "RaA82UOZm5eIl2rESa8k1KFlEKx4wEvtvJROTL3UMnUOHE9AK42d3JzV384ocaIO41x/VUULTgJen6G95Qf0Ag==",
    "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAwH2fYdYB5nD0CQslDtG3FgafcJBoOX2OGoT80Woksrk=\n-----END PUBLIC KEY-----\n",
    "verify_url": "https://apk-scanner.com/verify"
  }
}