About me

Hello, dear visitor!

Welcome to my home page.

I am an Assistant Professor at the Federal Institute of Alagoas, Campus Arapiraca. 

I received my Ph.D. in Informatics Engineering from the University of Coimbra (CISUC-DEI-FCTUC). My advisor was Professor Marco Vieira. My thesis is about the availability and security evaluation of Time-based VM migration as Moving Target Defense. The full text is available here.

I received my M.Sc in Computer Science from the Federal University of Pernambuco. My advisor was Prof. Paulo Maciel. My dissertation is about availability models for cloud computing environments with VM Live Migration technique as support for software rejuvenation. 

I received my B.Sc in Computer Science from the Federal University of Alagoas, under the guidance of Prof. Marcelo Oliveira. At that time, I worked on building and managing an OpenNebula private cloud to host medical imaging-related applications.

My research interests are in system security, performance, and dependability evaluation. The recent topics of my research activity are focused on availability and reliability evaluation, Virtual Machine migration-enabled environments, Moving Target Defense and Software Aging and Rejuvenation. My main research interests (current) include:

- Moving Target Defense evaluation (modeling, simulation, and measurements)

- Software Aging and Rejuvenation

- Possible crossovers between AI, ML, and stochastic modeling

- Stochastic Petri Nets 

Recent topics:

2024/10/07: Our paper entitled "Empirical observation of Execution Throttling as MQTT Broker defense against Memory Denial of Service Attacks" was accepted for the Industrial Track of Latin-American Symposium on Dependable and Secure Computing (LADC).


2024/09/28: Our paper entitled "Evaluation of time-based virtual machine migration as moving target defense against host-based attacks" was accepted for the Journal of Systems and Software.


2024/07/09: Matheus defended his PhD Thesis (Summa Cum Laude): Models for Availability and Security Evaluation of Time-based Virtual Machine Migration as Moving Target Defense. 


2024/04/29: Matheus Torquato's co-authored paper "Event-Based Moving Target Defense in Cloud Computing with VM Migration: A Performance Modeling Approach" with Lucas Santos, Carlos Brito, Iure Fé, Juliana Carvalho, Eunmi Choi, Dugki Min, Jae-Woo Lee, Tuan Anh Nguyen, Francisco Airton Silva has been accepted for IEEE Access. 


2024/03/26: Carlos André successfully completed his undergraduate thesis with a score of 9 out of 10. Congratulations Carlos!


"Pois que se uniu a mim, eu o livrarei; e o protegerei, pois conhece o meu nome.

Quando me invocar, eu o atenderei; na tribulação estarei com ele. Hei de livrá-lo e o cobrirei de glória." Sl 90, 14-15.