Question: I'm looking for a plagiarism checker that protects intellectual property rights and data privacy.

If you need a plagiarism checker that's designed to protect intellectual property and keep your data private, Crossplag is a good choice. The service uses AI technology to check for originality in more than 100 languages and comes with an AI Content Detector to spot AI-generated content. Role-based workflows, ultra-fast verification and a self-provisioning environment help protect data and intellectual property. It offers a Similarity Report API and white-labeling options, making it good for individuals, schools and businesses.

Another option is Copyleaks, which offers a range of tools including AI Detector, Plagiarism Detector and Gen AI Governance. Copyleaks checks for AI in more than 30 languages and plagiarism in more than 100 languages, and it can integrate with Learning Management Systems. It prioritizes data security and privacy, with GDPR compliance and SOC 2 and SOC 3 certifications, so it's a good option for schools and businesses.

Plag is also worth considering. It offers detailed reports to verify the authenticity of documents, with a large database of billions of articles, including academic papers. Plag offers scores for similarity, plagiarism risk, paraphrase and improper citation, and it shows the passages it's matched for easy evaluation. It supports more than 129 languages and offers a free plagiarism check with estimated scores, so it's a good option for students, teachers and professionals.

If you're looking for a more comprehensive academic writing tool, you might want to try Paperpal. It offers accurate plagiarism detection, real-time grammar checking and a paraphraser that maintains a formal tone. Paperpal is ISO/IEC 27001:2013 certified for data security, so your documents are protected. It's good for all stages of writing and can integrate with MS Word for easy use.