Summary
- Researchers disclosed six vulnerabilities affecting Apple AirDrop and Google/Samsung Quick Share.
- The study says the protocols are reachable from wireless proximity and are used across more than five billion devices.
- Managed endpoints, executive travel, offices, conferences, and proximity-based targeting all sit within the exposure model.
Researchers have disclosed six vulnerabilities affecting Apple AirDrop and Google/Samsung Quick Share, exposing how proximity file-sharing protocols can become enterprise endpoint risk when devices operate in offices, transport hubs, hotels, conferences, and executive travel settings.
The research paper, Protocol Prying, examines AirDrop and Quick Share across Apple, Android, Samsung, and Windows environments. The authors say the protocols are used on more than five billion devices and are reachable from wireless proximity without prior pairing.
The research found three pre-authentication issues in macOS and iOS AirDrop, two protocol-layer flaws in Samsung Quick Share, and a heap use-after-free in Google Quick Share for Windows. The authors say Apple, Samsung, and Google acknowledged the reports.
The business risk should not be treated as a consumer phone problem. AirDrop and Quick Share are present on devices that routinely carry corporate email, files, credentials, messaging apps, authentication prompts, and executive communications. Even where mobile device management policies restrict some sharing features, mixed estates and personal devices can still operate near sensitive work.
Proximity attacks challenge controls that focus mainly on internet exposure, email delivery, endpoint malware, or credential theft. A file-sharing protocol reachable over local wireless conditions creates a different model. The attacker may be in the same meeting room, airport lounge, train carriage, hotel lobby, conference hall, or shared office.
High-value users and sensitive environments have a particular exposure. Executives, legal teams, journalists, political staff, finance personnel, engineers, and public-sector officials often work in dense physical environments while carrying devices with privileged access. A vulnerability does not need internet-scale reach if it can be used near a selected target.
The response sits in policy, configuration, patching, and user context. Device-sharing settings should be reviewed, especially broadly discoverable modes. Managed fleets should confirm update status across macOS, iOS, Android, Samsung devices, and Windows installations of Quick Share. Travel guidance and executive protection processes should include wireless proximity risk alongside Wi-Fi, Bluetooth, and physical surveillance.
The research also shows why proprietary, undocumented protocols deserve security scrutiny. Proximity sharing is marketed as convenience and interoperability, but complex parsing, compression, handshakes, archive formats, and privileged daemons create attack surface. Local reachability does not make that surface low risk.
As mobile and desktop ecosystems become more seamless, organisations need better visibility into features that connect devices quietly in physical spaces. File-sharing convenience now sits inside endpoint resilience, device governance, and travel risk planning.
