Child exploitation is not merely a niche crime like copyright infringement; it is a global crisis with inhumane, profound social, and ethical consequences. As digitalization accelerates, the production of such content has become faster and on a larger scale.
In this context, the role of content safety companies has become critical. In particular, major platforms are not merely structures that host content; they are also hubs that facilitate the discovery, dissemination, and access to content. Therefore, understanding how these platforms establish and operate systems to combat child sexual abuse material (CSAM) is of great importance for comprehending the issue.
In this article, we use data from Google’s Transparency Report to explain the process of combating online child abuse content, the technologies involved, and the mechanisms at work in a simple and easy-to-understand way.
What Is Illegal CSAM and Why Is It a Critical Issue?
CSAM (Child Sexual Abuse Material) refers to any type of digital content depicting the sexual abuse of children. This content may take the form of images, videos, text, or links (URLs).
One of the most critical characteristics of this content is that it can remain in circulation for a long time, not only at the moment it is produced but also because it can be shared repeatedly in the digital environment. The same content can be uploaded to different platforms and re-shared by different users, which complicates detection processes.
Therefore, the fight against CSAM is not limited to simply removing content; it involves a multi-layered process that includes preventing the re-emergence of such content, detecting it, and reporting it to the relevant authorities.
What Is Google’s Role, and How Does the System Work?
Google addresses CSAM content it detects on its platforms (such as YouTube, Drive, or Search) through a specific process. This process consists of four main steps:
1.Detection
Content is identified through automated systems and user reports.
2.Classification
The content is evaluated to determine whether it is actually CSAM.
3.Reporting
Detected content is reported to the relevant authorities.
4.Enforcement
The content is removed, and sanctions are imposed on the relevant user accounts
One of the most critical institutions in this process:
NCMEC (National Center for Missing & Exploited Children)
is a U.S.-based organization that collects reports of child sexual abuse material (CSAM) from technology companies and forwards them to law enforcement agencies.
Google reports the content it identifies to NCMEC through a system called CyberTipline.
CyberTipline:
It is a central reporting system where technology companies officially report child abuse content.
Data for July–December 2025
According to data shared by Google, 5,707,562 pieces of content were identified and reported as CSAM between July and December 2025.
This number:
May not represent unique items
May include instances where the same item is detected more than once
Of the content identified:
99.5% was detected by automated systems
0.5% was identified through manual review.
Technologies used for detection:
Hash Matching:
Matching against the digital “fingerprints” of previously identified illegal content
Machine Learning:
Analyzing new content to detect risky content
Manual Review:
A verification process conducted by human moderators
CyberTipline Reports
The total number of reports sent by Google to NCMEC is 862,284.
It should be noted that this figure includes reports containing multiple pieces of content, as well as instances where the same content appears in multiple reports.
Restrictions on Accounts
In connection with CSAM violations, sanctions have been imposed on 365,597 user accounts. These sanctions include account suspension, restricted access to services, and permanent closure.
Google Search Interventions
Although Google cannot directly intervene in content hosted on third-party sites, 264,371 URLs have been removed or blocked from search results.
Google does not host content, but it can restrict access to it.
Hash Database Contribution
Google has added 3,582,172 hashes to the NCMEC database.
With this system:
The same content can be detected across different platforms
Cross-platform collaboration is facilitated
How Does the System Work?
This effort is based on a multi-layered system rather than a structure that a single platform could address:
Platforms detect content,
Content is matched using hash technology.
It is reported via CyberTipline,
NCMEC collects this data,
It is forwarded to law enforcement.
This structure creates a digital security ecosystem that operates on a global scale.
What Are Structural Limits?
Although this process is comprehensive and multifaceted, it has certain structural limitations:
Content can be reposted
It can spread quickly across different platforms
Google cannot completely remove content from third-party sites
Automated systems may not be able to detect all content
For this reason, the effort requires a continuous, dynamic, and multi-stakeholder approach.
The Importance of Early Detection Methods
Early detection is crucial when it comes to content involving child abuse. Early monitoring software like TRINITY ensures the protection of personal rights while detecting such content.
While this software facilitates the removal of re-uploaded content and prevents its spread, it also provides a continuous and dynamic framework.
Child abuse is an issue that every segment of society must address together
Combating online child abuse content is an issue that must be addressed not only by technology companies, but also by governments, international organizations, and society as a whole.
Google’s Transparency Report clearly outlines the technical aspects of this fight, the systems used, and the scale of the data involved.
However, these data also reveal the following:
This social crisis—which could be prevented through early detection and the use of various software tools like TRINITY—is not merely a matter of content removal; it is a complex and ongoing battle fought on a global scale.