It’s (shorthand)[teeline.online]. It says “prc(t)ml” with the p being in the obvious spot (though it should be just a downward line), the r is the diagonal line after it, the c is the little curl, the t should be more pronounced, but it should be a horizontal line slightly above the rest, the m is a concave-down swoosh, and the l is the final curl. No vowels b/c they’re largely redundant.
It looks like a research group found a security vulnerability that they then used to find a single common key in all of the cards made by this company. The second part here is a reasonable concern, but the article calls the vulnerability a backdoor in the beginning, which I think is fairly misleading.