A work phone can open email, Teams, files and customer records wherever an employee goes. Stratiis helps businesses across Scotland protect the devices, accounts and applications behind that access, with clear rules that people can follow.
What is business mobile security?
Business mobile security combines identity controls, device and app protection, user guidance and incident processes to keep company information safe on smartphones and tablets. It covers company-owned and personal devices. The right controls depend on what each device can access, who owns it and how people work.
Where do mobile security problems begin?
A lost handset is one risk, but an attacker may also use a stolen password, a fraudulent text or a convincing sign-in prompt to reach business data. Small screens can make suspicious links and sender details harder to inspect. Protection needs to follow the whole route from the person and device to the account and application.
Unknown access
Unmanaged or unsupported phones may still connect to business accounts.
Account takeover
A compromised identity can expose data even when the handset stays in an employee’s pocket.
Data leakage
Files and contacts may move into personal apps or storage without clear controls.
Slow response
If a device disappears, staff need to know who secures the account, device and SIM.
What should a mobile security plan include?
One product cannot address every mobile risk. The strongest plan combines appropriate controls with a straightforward process for staff and administrators.
Identity and sign-in
Use suitable multi-factor authentication, account recovery and Conditional Access so a password alone is less useful to an attacker.
Device standards
Set expectations for screen locks, encryption, supported operating systems and timely updates.
App and data protection
Keep work information inside approved apps where possible and define how it can be shared or removed.
Threat awareness
Help employees recognise suspicious texts, QR codes, fake apps and unexpected authentication prompts.
Incident response
Agree how to report a lost phone, revoke sessions, remove work data and protect the mobile number.
Lifecycle and review
Review device access, compliance and exceptions as people join, change roles or leave.
Why does mobile security start with identity?
Business data often lives in Microsoft 365 and other cloud services rather than on the phone itself. Multi-factor authentication helps protect sign-ins, while Conditional Access can use factors such as device compliance or approved applications to make access decisions. These rules need testing and an agreed recovery route so legitimate users are not unexpectedly locked out.
Authentication that people can trust
Authentication apps, passkeys or security keys may be suitable for some accounts. Staff should be taught to reject and report unexpected approval requests. Repeated prompts can be an attack, not a harmless system error.
Where SMS fits
A text code may be better than a password alone, but a mobile number can be affected by SIM swaps, lost phones and account recovery fraud. The method should fit the risk of the account rather than be used automatically for every user.
MDM, app protection and BYOD: which controls fit?
Company-owned devices can often be enrolled for fuller management. Personal phones usually need clearer privacy boundaries and may suit work-app protection instead. The design should state what the organisation can see and what can be removed.
| Device model | Likely approach | Key decision |
|---|---|---|
| Company-owned | Managed enrolment, security configuration, compliant access and approved apps. | How much personal use is permitted, and when can the whole device be wiped? |
| Personal (BYOD) | Protected work apps or a supported work profile, with proportionate access rules. | Can work data be removed without disturbing personal content? |
| Shared or dedicated | Purpose-specific enrolment, sign-in, app restrictions and reset procedures. | How is one user’s information cleared before the next uses the device? |
For enrolment, compliance policies, remote actions and platform detail, see our Mobile Device Management service.
How do you reduce phishing and malicious app risk on phones?
Mobile phishing can arrive by email, text message, chat or QR code. Users may be pushed to a fake sign-in page or asked to approve an unexpected authentication request. Staff need short, practical guidance, an easy reporting route and controls that limit what a stolen account can reach.
Check the request
Pause before opening unfamiliar links or entering credentials from a message or QR code.
Use approved apps
Install work tools through trusted channels and keep them updated.
Question sign-in prompts
Reject and report approvals you did not initiate, including repeated MFA requests.
Report quickly
Early reporting gives IT more time to revoke access and contain a problem.
What about public Wi-Fi, hotspots and mobile networks?
A trusted mobile connection or managed hotspot may be more predictable than an unknown public network. Staff should verify the network they join, keep device software current and use approved access methods for business systems. A VPN or secure access service may be appropriate for some applications, but the need depends on the service and its design.
Mobile number security matters too. Limit who can change business SIMs or account details, protect provider accounts and investigate unexpected loss of service. Stratiis can help align this with your Business SIM-Only Plans.
What should happen when a business phone is lost?
Employees should know how to report a missing phone immediately, even if they hope it will turn up. The response should consider the device, business accounts, authentication methods and SIM together. Available lock or wipe actions depend on enrolment and device ownership; an offline phone may not receive a command until it reconnects.
Report
Record the user, device, number and time of loss.
Assess
Check business access, ownership and last known state.
Secure
Revoke sessions and take the appropriate device action.
Protect SIM
Contact the provider if the number or account is at risk.
Restore
Set up a replacement and safe authentication recovery.
Review
Document what happened and improve the process.
Make controls fit the way people work
Field staff, construction teams, office users and executives can face different risks. A shared site tablet needs a different sign-in and data-clearing process from a personal phone used only for Outlook. We design controls around the information accessed, the owner of each device and the support people need.
Secure access without unnecessary friction
Overly restrictive policies can interrupt genuine work. Pilot rules across devices, apps and roles before a wider rollout, then explain what employees should expect.
Respect personal-device privacy
A BYOD policy should explain what is visible to administrators, what is managed, what can be removed and what happens if someone leaves or replaces a phone.
How does Stratiis improve mobile security?
We start with your actual mobile access and existing licences, then agree a proportionate set of controls and a practical rollout.
Discover
Map users, devices, apps, SIMs and business information.
Assess
Review identity, access, unsupported devices and incident gaps.
Design
Choose device, app, identity and privacy policies.
Pilot
Test representative devices and user roles.
Deploy
Communicate changes, enrol and support staff.
Review
Track exceptions, incidents, leavers and policy changes.
What affects the cost of mobile security?
Cost depends on user and device numbers, existing Microsoft or other licences, whether devices are company-owned or personal, the security tools required and the level of ongoing support. A clear proposal should separate one-off assessment and deployment work from recurring licences, management, monitoring and incident support.
The aim is a sensible level of protection for the information at risk, with staff able to use the mobile services they need.
Frequently asked questions
Answers to common questions from business leaders and employees.
Is a screen lock enough to protect a business phone?
No. A screen lock helps if the phone is lost, but account protection, updates, app controls and a response process are also needed.
Does mobile security require full device management?
Not always. Some personal-device use can be protected through managed work apps and access rules without enrolling the whole phone. The right model depends on risk, platform and policy.
Can the business see personal photos or messages on a BYOD phone?
What administrators can see depends on the platform and enrolment model. Staff should receive a plain-language explanation of the chosen approach before enrolment; access to personal content should never be assumed.
Can company data be removed without wiping a personal phone?
Supported app-protection or work-profile approaches can remove managed work data selectively. The exact effect should be tested and explained before deployment.
Can a phone be wiped when it is offline?
A supported remote command may wait until the device reconnects. IT should also protect the associated accounts and sessions promptly.
Is SMS secure for multi-factor authentication?
It can add protection compared with a password alone, but it is exposed to risks such as SIM swaps and number recovery fraud. Stronger methods may be appropriate for sensitive accounts.
What is SIM-swap fraud?
It is the unauthorised transfer of a mobile number to another SIM or account. A sudden unexplained loss of mobile service can be a warning sign and should be reported promptly.
What is smishing?
Smishing is phishing by text message. A message may pretend to be from a trusted service and lead the recipient to a fake website or ask for a code.
Are iPhones safer than Android phones?
Neither platform is automatically safe in every situation. Security depends on support status, updates, configuration, approved apps and how the business account is protected.
Should rooted or jailbroken phones access business data?
They may have weakened platform protections. Many organisations choose to restrict access, subject to a tested policy and available device signals.
Can Microsoft Intune improve mobile security?
Yes. Depending on licences and configuration, Intune can support device compliance, app protection and access policies. It should be part of a broader identity and incident plan.
What is Conditional Access?
It is a set of sign-in rules that can consider factors such as identity, app, authentication and device status. Policies can restrict access when defined conditions are not met.
Does mobile antivirus protect everything?
No. Mobile threat tools can help with some risks, but they do not replace identity security, updates, app controls or employee reporting.
Is public Wi-Fi safe for work?
Treat unfamiliar networks cautiously. Verify the network, use approved business apps and follow your organisation’s access policy. A trusted mobile connection may be preferable for sensitive work.
How much does mobile security cost?
It varies with device numbers, existing licences, scope and ongoing support. A useful quote separates setup, subscriptions, management and incident response.
Can Stratiis help with mobile contracts and SIM security?
Yes. We can review mobile account access and align SIM administration with your business mobile plan.
Protect mobile access without slowing your team down
We’ll review your devices, accounts, applications and current policies, then recommend practical steps for company-owned and personal phones.
Book a Mobile Security ReviewCall 0141 348 7960
Email sales@stratiis.com
