Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Kobe Bryant Wallpaper – Black Mamba Backgrounds [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's generic account policy — admits data collection and 3rd-party sharing without any extension-specific scope.
• Uninstall URL hijack to chromewallpaper.com and install URL hijack both confirmed — classic traffic-monetization shell.
• NewTab override + search permission enables full search-monetization replacement of every new browser tab.
• Free-webmail developer (gmail.com), no developer name, no verified publisher — zero accountability.

Evidence

• uninstall_url_hijack manifest chrome.runtime.setUninstallURL → https://chromewallpaper.com/uninstall (3rd-party traffic grab).
• install_url_hijack manifest onInstalled opens https://chromewallpaper.com/kobe-bryant-wallpaper-black-mamba-backgrounds.
• newtab_override manifest chrome_url_overrides.newtab = index.html; replaces every new tab with operator-controlled page.
• generic_privacy_policy store Policy URL is myaccount.google.com; scope_extension=false, data_collection=true, third_party_sharing=true.
• free_webmail_no_dev_name store Developer email cananayartis@gmail.com; developer_name empty; no verified publisher badge.
• broad_external_hosts crx 8 external JS hosts: chatgpt.com, netflix.com, instagram.com, x.com, youtube.com — excessive for a wallpaper.
• search_permission_newtab_combo manifest search permission + newtab override = full search-monetization capability.
• no_csp manifest content_security_policy is null; MV3 provides some default but no explicit CSP declared.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Kobe Bryant Wallpaper – Black Mamba Backgrounds [adware] + malext.io malicious_extension_sentry; score 5.32 -> 7.82 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Allows overriding search provider; combined with newtab override creates full search monetization surface.
• chrome_url_overrides.newtab medium Replaces every new tab page; primary monetization vector for wallpaper/shell extensions.

Pillar Scores

Bookkeeping