Alexandre Bartel

Software Engineering and Security Group at Umeå University, Sweden.

[Alexandre Bartel @software_ses]

also remains robust under obfuscation (F1 above 0.90 for 7/8 Obfuscapk operators where baselines drop sharply) and temporal concept drift (F1 of 0.99 on 2022 and 0.95 on 2023 apps).

[Alexandre Bartel @software_ses]

Our paper "Loom: A Balanced String-Based Transformer for Android Malware Detection" will be presented at the 28th International Conference on Information and Communications Security (ICICS 2026) in October!

[Alexandre Bartel @software_ses]

... on the selected tokens. Evaluated on a cleaned public benchmark (PublicAMD) and a new AndroZoo-derived dataset (AndroAMD), Loom reaches F1 =0.97 on both, outperforming all string-, image-, graph-, and transformer-based baselines.

[Alexandre Bartel @software_ses]

https://t.co/ZIkESk49wy

[Alexandre Bartel @software_ses]

I am very happy to receive Nordea's Scientific Prize 2026! It is the result of many research and teaching collaborations, and especially of the hard-working group members I have the pleasure of working with. Many thanks to all of you and have a great summer ;-) !

[Alexandre Bartel @software_ses]

[1] Ken Thompson, "Reflections on trusting trust." Communications of the ACM 27.8 (1984): 761-763.

[Alexandre Bartel @software_ses]

On Tuesday, I gave a keynote at BSides Ume on "Software Supply Chain Attacks" where I presented two examples of what could go wrong in the software supply chain.

[Alexandre Bartel @software_ses]

Thanks to Mattias Wadenstein for the invitation and the organisation of this event!

For more details about these two attacks, you can visit the Github pages:

https://t.co/qYJ3aLI6l9

https://t.co/N3R56igSLF

[Steven Murdoch @sjmurdoch]

My article on hidden messages within GPS signals was featured on @404mediaco. https://t.co/uuZAO643Uv

[Alexandre Bartel @software_ses]

Thank you to Chatarina Larson for organizing this event!

[Alexandre Bartel @software_ses]

Last week, I was invited to give a talk on software security at the Juristkonferens 2026, a yearly event aimed at gathering legal professionals working at universities in Sweden.

[Alexandre Bartel @software_ses]

Another interesting aspect that was mentioned is the homogeneity of software used at universities such as software handling emails. If a vulnerability (technical or legal) is found and exploited it could expose data for all institutions relying on this software.