The topics of her research include cloud computing, security and privacy, and operating systems.
[3] Geambașu is originally from Ploiești in Romania,[2] and graduated from Politehnica University of Bucharest in 2005, as valedictorian of Computer Science and Engineering.
[7] In 2014, a team at Columbia led by Geambașu developed a tool called XRay for detecting correlations between ads shown to people and their personal data.
[9] Popular Science named Geambașu in their "brilliant ten" in 2014 for her work tracking corporate use of personal data.
[12] She has also received an Early Career Award in Cybersecurity from the University of Washington Center for Academic Excellence.