If a smartphone is potentially accessible without the user's knowledge, messages disappear, or someone else has access to information that should be confidential, suspicion quickly arises. In a corporate setting, this could involve unusual file activity, external storage devices, compromised user accounts, or the potential leakage of development data. However, whether such anomalies actually indicate unauthorized access, manipulation, or data theft can only be determined by examining the existing digital evidence.

Our IT forensics services in Böblingen support private individuals, companies, lawyers, and other clients in securing, examining, and professionally evaluating digital evidence. Smartphones, computers, data storage devices, and other relevant data sources are not analyzed indiscriminately. The starting point is a clearly defined investigative question.

This work has a particular economic context for Böblingen. IT and software, automotive research and development, medical technology, and highly specialized technical companies characterize the location and its immediate surroundings. Where source codes, development documents, technical documentation, project information, and other know-how are processed digitally, even a single security incident can have significant economic and legal consequences.

IT forensics in Böblingen – what can actually be proven digitally?

Digital forensics aims to transform a suspicion into a technically verifiable fact – insofar as the available data allows for this. The crucial point here is the boundary between an established event and its interpretation.

The fact that a USB stick has been connected to a computer, for example, does not prove that confidential files have been copied onto it. An unknown account access may document a login, but does not necessarily identify the individual behind it. Similarly, high battery consumption on a smartphone is not proof of spyware.

Professional forensics therefore doesn't just look at individual hits. Timestamps, system artifacts, user activity, communication data, file system information, and other traces can be correlated. Equally important is determining which questions cannot be answered with certainty based on the available data.

The basics are explained in our knowledge article "What is digital forensics?".

Mobile phone forensics for private individuals in Böblingen

In private projects, the smartphone is often the central tool. Personal communication, email, photos, messaging apps, user accounts, cloud services, and a wealth of other information converge on a modern mobile device.

A forensic investigation can be particularly useful in the following cases:

• Suspected unauthorized access to a smartphone,
• possible spyware or technical manipulation,
• unknown devices within personal accounts,
• deleted WhatsApp or Messenger messages,
• deleted photos, videos or other relevant data,
• unexplained access after a separation,
• digital stalking or account abuse,
• Securing digital information for legal disputes.

Which data is actually accessible depends on factors such as the device model, operating system, encryption, security configuration, and the device's condition. Our knowledge article " What is Smartphone Forensics?" provides a more in-depth overview.

Does anyone have access to my phone?

This question is one of the most common reasons for private investigations. However, one should not rush into searching solely for a hidden surveillance app.

Especially after a breakup or during personal conflicts, other access methods can be much more obvious. Former partners may know passwords, a tablet or computer may still be connected to the same account, cloud data may be synchronized, or an old device may still have valid authorization.

Depending on the specific smartphone, applications, permissions, account connections, system artifacts, and other technical data can be examined. Crucially, an open-ended approach is essential: suspected unauthorized access must not be considered proven before the analysis begins.

Forensic analysis of WhatsApp and Messenger

Messenger communication can be relevant in both private disputes and corporate investigations. A forensic analysis of WhatsApp messages is not necessarily limited to the messages currently visible on the screen.

Depending on the available data source, messages, timestamps, participant information, media, documents, group information, and other technical artifacts can be examined. The origin of the data is particularly important: a screenshot has a different technical significance than information from a verifiably secured original data source.

We explain the possibilities and limitations in detail in the article "Forensic analysis of WhatsApp messages".

Can deleted messages, photos, or files be recovered?

Data recovery may be possible under certain technical conditions, but it cannot be guaranteed. Modern smartphones use encrypted storage and complex data structures. Whether usable information remains after deletion depends on the device, the specific application, any backups, and subsequent usage.

Therefore, a smartphone with potentially important deleted data should not be reset prematurely. Reinstallations, cleaning programs, or intensive further use can also alter the initial situation.

iPhone and Android forensics

iPhones and Android smartphones differ significantly in their security architecture and possible forensic access methods.

For an iPhone, factors such as device model, iOS version, security configuration, encryption, and existing backups influence the investigation. For Android devices, there are also significant differences between manufacturers, chipsets, and operating system versions.

Therefore, the appropriate method is determined individually for each device. Further information can be found in our knowledge articles on iPhone forensics and Android forensics.

Computer forensics in Böblingen – reconstructing a sequence of events from individual traces

Computers and laptops can document much more than just existing files. Depending on the operating system, information about user activity, connected devices, programs, browser usage, and file system operations can be stored.

For example, an investigation might consider when a file was created, opened, modified, or deleted. Combining this information with other system traces can reveal temporal correlations.

This correlation is particularly important in operational cases. A single technical lead rarely answers all the questions of a more complex process.

We explain the possibilities for PCs and notebooks under What is Computer Forensics?

Böblingen as a technology and IT location – when development knowledge becomes digital evidence

Böblingen, within the Stuttgart region, is particularly characterized by technology-oriented companies. Automotive and vehicle development meet IT and software, measurement and control technology, medical technology, engineering services, and numerous specialized medium-sized companies.

This structure changes the significance of digital evidence. In a traditional administrative company, customer data or business documents might be the focus. In a technology-oriented company, on the other hand, source code, test data, design documents, technical specifications, development statuses, or confidential project documentation can be of particular value.

Furthermore, such information is often not stored on a single computer. Development data can be distributed between laptops, desktop computers, smartphones, servers, cloud platforms, and other company systems.

In a suspected case, it is therefore necessary to first clarify which information could actually be affected and on which systems relevant traces are to be expected.

IT forensics for companies in Böblingen

Companies often require digital forensics when an internal anomaly needs to be transformed into a reliable technical assessment. Typical questions include:

• Were any confidential files copied or deleted?
• Which external storage devices were used at a workstation?
• Were there any unusual activities prior to the termination?
• Was any development or project data possibly transferred?
• Which user accounts were involved in the process?
• Has a company smartphone been compromised?
• Which systems were affected by a cyber incident?

The scope of the investigation should be tailored to the specific question at hand. Targeted backup of relevant systems is often more effective than the blanket collection of large amounts of corporate data.

Protect development data and intellectual property

In technology-intensive companies, a data breach can have a far greater impact than the loss of individual documents. Development statuses, software, technical specifications, calculations, or project information can represent years of development work.

The situation can become particularly critical around the time of termination, suspension, or a change of employer. If there are concrete indications of unusual file activity, it should be clarified early on which systems and data storage devices need to be preserved as potential evidence.

The aim is not to consider a specific person responsible based on mere suspicion. Rather, the goal is to secure existing technical evidence and then examine which processes can actually be traced.

USB sticks, external hard drives and possible copying operations

External storage media often play a role in suspected data breaches. Under certain conditions, computers can contain information about which USB devices were connected and when those connections existed.

However, proof of a device connection is not the same as proof of a specific copying operation. A more comprehensive assessment requires consideration of additional file system and user activity.

This distinction is particularly important in cases relevant to labor law or economics: A technical finding should only support a statement that can actually be justified based on the available data.

Cyber ​​incidents in technology-oriented companies

Interconnected development and enterprise environments can generate various sources of evidence in the event of a cyber incident. End devices, user accounts, email systems, and other IT components can each only document a portion of the event.

Therefore, after a security incident, two goals must be coordinated: The threat must be limited, while at the same time relevant digital traces should not be unnecessarily destroyed.

A blanket reinstallation of all affected systems can complicate later reconstruction. On the other hand, a compromised system should not be kept running solely for forensic reasons if doing so risks causing further damage.

Forensic data backup – before the actual analysis begins

A thorough investigation begins with the question of how the respective piece of evidence is secured. Smartphones, SSDs, traditional hard drives, and modern Macs each have different technical requirements.

The commonly used image of an identical 1:1 copy cannot therefore be applied to every modern device. For example, smartphones may require logical extractions, file system extractions, or other technically available data repositories.

The appropriate backup method depends on the object of investigation and the specific questions being asked. Our knowledge base article "What is forensic data backup ?" explains these basics in more detail.

Integrity and Chain of Custody

In investigations relevant to evidence, not only must the result be comprehensible. The origin and handling of the examined data can also be significant.

With appropriate safeguards, cryptographic hash values ​​can be used to verify the integrity of a data set. A documented chain of custody further describes the handling of the evidence – for example, acquisition, identification, securing, and further processing.

For more in-depth information, please see our article Chain of Custody in digital forensics.

Forensic tools – why software alone does not provide proof

For different devices and operating systems, tools such as Cellebrite UFED, Cellebrite Collector, Cellebrite Inspector, X-Ways Forensics, MOBILedit Forensic and MEFF 3 PRO, as well as other specialized tools, can be used.

However, the technical equipment alone does not determine the quality of an investigation. A forensic program can extract, sort, and display data. The crucial professional work begins with the interpretation.

A timestamp must be technically classified, a system activity understood within its context, and an automated software hit may need to be verified by further artifacts. Therefore, an automatically generated report is not equivalent to an expert opinion.

Certified processes and expert competence

LB Detektive GmbH has a quality management system certified by TÜV NORD according to DIN EN ISO 9001, the scope of which includes IT forensics. In addition, the expert is certified according to DIN EN ISO/IEC 17024.

The two certifications address different levels. DIN EN ISO 9001 relates to quality management and defined organizational processes. Personnel certification according to DIN EN ISO/IEC 17024 concerns the proven competence of a certified individual.

For clients, this means above all: investigations should be carried out in a structured manner, work steps should be documented in a comprehensible way, and technical findings should be professionally classified.

Three typical examination situations in Böblingen

Private: Unknown access to personal information

After a breakup, it appears that another person still has access to information from the private sphere. Instead of solely searching for spyware, potential access points are narrowed down to smartphones, accounts, cloud connections, and devices that remain authorized.

Technology companies: Development information may have leaked

Before an employee leaves the company, unusual file activity is detected. The relevant time period is narrowed down, and then it is examined which computers, user activities, and external storage devices could be relevant to the specific issue.

Company: A cyber incident affects multiple systems

Instead of considering each device in isolation, the first step is to determine which systems and user accounts are relevant for reconstructing the incident. Subsequently, existing technical traces can be correlated chronologically.

How does an IT forensic investigation proceed?

1. Narrow down the question

First, it is defined which digital process is to be examined and which time period is relevant.

2. Determine evidence

Smartphones, computers, data storage devices and other data sources are only included if they are actually relevant to the research question.

3. Back up data professionally

The backup method is adapted to the device, operating system, security status, and investigation objective.

4. Analyze digital traces

Relevant artifacts are evaluated and, if necessary, compared with other data sources in terms of timing and content.

5. Document results

Depending on the assignment, the findings can be compiled into a structured investigation report or an IT forensic expert opinion.

What should be avoided before an examination?

• Do not hastily reset a suspicious smartphone.
• Do not delete suspicious apps yourself.
• Do not install any unknown spyware or cleanup programs.
• If data has been deleted, use the device as little as possible.
• Do not unnecessarily modify company computers if a data breach is suspected.
• Document relevant security alerts and anomalies.

IT forensics in Böblingen and the Stuttgart region

Our service area includes Böblingen, Sindelfingen, Leonberg, Herrenberg, Holzgerlingen, Schönaich, Ehningen, and other locations in the Böblingen district. Due to our direct connection to the Stuttgart region, we also conduct relevant investigations in Stuttgart and other parts of Baden-Württemberg.

The spectrum ranges from a single smartphone belonging to a private customer to more complex business cases involving multiple computers, mobile devices, or data storage media.

Frequently asked questions about IT forensics in Böblingen

Can I, as a private individual, commission a mobile phone forensics analysis?

Yes. Private individuals can have smartphones examined, for example, in cases of possible unauthorized access, deleted communication, compromised accounts, or to secure digital evidence.

Is it possible to determine if my phone has been hacked?

Existing technical indications of a possible compromise can be investigated. Whether unauthorized access can actually be proven depends on the device, the possible access method, and the data still available.

Is it possible to check if my former partner still has access?

Depending on the circumstances, smartphones, user accounts, authorized devices, and other potential access points can be examined. Continued access does not necessarily have to be via spyware.

Can deleted WhatsApp messages be recovered?

This may be possible under certain technical conditions. Whether usable data still exists depends, among other things, on the device, the application, existing backups, and further use after deletion.

Is it possible to determine if development data has been copied?

Depending on the system, file activity, external storage devices, and other technical artifacts can be examined. Whether the transfer of specific files can be proven must be assessed based on all available evidence.

Can a connected USB stick be detected?

Under certain conditions, computer systems can contain traces of connected USB devices. However, proof of a connection does not automatically prove that specific files were copied.

Can Macs and encrypted systems also be examined?

In principle, yes. However, the specific backup and analysis method depends on the hardware, operating system, encryption, security status, and available access options.

Can an investigation still be conducted after a cyberattack?

Yes, provided suitable data sources are available. Which systems and information are needed depends on the specific attack and the changes already made.

Are expert reports prepared?

Yes. Depending on the task at hand, an IT forensic expert report can be prepared in addition to a technical investigation report.

How much does IT forensics cost in Böblingen?

The effort required depends on the specific question, the number and type of devices, the data volume, technical accessibility, and the desired documentation. Therefore, in more complex cases, the actual scope of the investigation is first defined.

Request IT forensics services for Böblingen

Whether it's a compromised smartphone, deleted communication, possible unauthorized access, data leakage or a cyber incident: For an initial assessment, the affected device or system, the specific anomaly, the relevant time period and possible changes since the event are particularly important.

Based on this, it can be determined which digital evidence is actually needed and which preservation and analysis method is appropriate for the specific question. Further in-depth information can be found in our knowledge database on digital forensics.